What do you think?
Rate this book
The Killer in Room Five
A terrible confession
In an isolated room in Hollowpines, an infamous psychiatric hospital, Joe Sinclair is confessing to a violent murder.
An impossible crime
Locked away, Joe couldn't possibly have killed the man, so how does he know so many of the horrifying details?
A detective at her limits
Suspended after a colleague was stabbed on her watch, DC Abby Fox has only just returned to work. But at Hollowpines, she must find out what really happened and how exactly Joe is involved.
Is he to blame, or the only one who can stop the killer?
In an isolated room in Hollowpines, an infamous psychiatric hospital, Joe Sinclair is confessing to a violent murder.
An impossible crime
Locked away, Joe couldn't possibly have killed the man, so how does he know so many of the horrifying details?
A detective at her limits
Suspended after a colleague was stabbed on her watch, DC Abby Fox has only just returned to work. But at Hollowpines, she must find out what really happened and how exactly Joe is involved.
Is he to blame, or the only one who can stop the killer?
464 pages, Paperback
Published May 21, 2026
About the author
Sam Holland
5 books862 followersSam Holland is the award-winning author of the Major Crimes series, following detectives as they investigate murders committed by brutal serial killers in the south of England. Her debut, The Echo Man, shocked and enthralled readers and reviewers alike with its sinister depiction of a serial killer copying notorious real-life murderers of the past.
Her books have been published in 15 countries worldwide, including the US, Germany and the Netherlands, where she became the first author to win the Bronze Bat for her debut and the Silver Bat for best thriller in consecutive years at the Nederlands Thrillerfestival.
The Killer in Room Five is the latest in the series and is out now.
She also writes as Louisa Scarr and is the author of the Butler and West crime series, beginning with Last Place You Look and ending with Out of the Ashes. A new series, about a police dog handler, launched in July 2024 with Gallows Wood. Book two and three in the series, Memorial Park and Broken House, are out now.
Sam can be found on social media at @samhollandbooks or online at www.samhollandbooks.com.
Her books have been published in 15 countries worldwide, including the US, Germany and the Netherlands, where she became the first author to win the Bronze Bat for her debut and the Silver Bat for best thriller in consecutive years at the Nederlands Thrillerfestival.
The Killer in Room Five is the latest in the series and is out now.
She also writes as Louisa Scarr and is the author of the Butler and West crime series, beginning with Last Place You Look and ending with Out of the Ashes. A new series, about a police dog handler, launched in July 2024 with Gallows Wood. Book two and three in the series, Memorial Park and Broken House, are out now.
Sam can be found on social media at @samhollandbooks or online at www.samhollandbooks.com.
Ratings & Reviews
Friends & Following
Create a free account to discover what your friends think of this book!
Community Reviews
Displaying 1 - 30 of 82 reviews
May 21, 2026
This was everything I wanted, and so much more!
This is my first book from Sam Holland, but if this book is anything like her others, then she will be a new favourite author…I loved it so much. Strong and likeable characters, solid plot throughout, full of twists and turns galore, creepy, with an explosive ending.
Im not going to talk about the story, you will just have to go and get it 😁 you won’t be disappointed!
5+ ⭐️
Thanks to Sam Holland, Hemlock Press, and NetGalley, for providing me with this free ARC, with which I leave a voluntary review.
Available: 21 May 2026 (TODAY)
This is my first book from Sam Holland, but if this book is anything like her others, then she will be a new favourite author…I loved it so much. Strong and likeable characters, solid plot throughout, full of twists and turns galore, creepy, with an explosive ending.
Im not going to talk about the story, you will just have to go and get it 😁 you won’t be disappointed!
5+ ⭐️
Thanks to Sam Holland, Hemlock Press, and NetGalley, for providing me with this free ARC, with which I leave a voluntary review.
Available: 21 May 2026 (TODAY)
Want to Read
May 2, 2026Sam Holland I will literally inhale any book you bless us with😭
March 12, 2026
I’ve read all of Sam Holland’s previous books, so I was really excited to dive into The Patient in Room 5, and it turned out to be every bit as dark and gripping as I hoped. Although it isn’t as dark or as gruesome as the authors previous books.
The premise is instantly intriguing. Joe Sinclair is locked away in an isolated room at Hollowpines psychiatric hospital, yet he’s confessing to a brutal murder he seemingly couldn’t have committed. What makes it even more unsettling is the level of detail he knows about the crime, the kind of details only the killer should know. It immediately sets up an impossible puzzle that had me constantly questioning what was really going on.
I really enjoyed following DC Abby Fox as the investigation unfolds. Having only just returned to work after being suspended, she’s clearly carrying a lot with her, and that vulnerability makes her a compelling character to follow. As Abby digs deeper into what happened, the case becomes increasingly complicated, and the tension steadily builds.
The setting of Hollowpines adds an unsettling, and claustrophobic atmosphere to the story.There’s a constant sense of paranoia which only intensifies as the investigation progresses.
As the story progresses, the darker and more unsettling things become. Sam Holland does a great job of layering the mystery and introducing twists that kept me second guessing throughout.
Overall, this was a dark, twisted thriller that kept me fully invested in the mystery. If you enjoy crime novels with a strong sense of suspense and plenty of surprises along the way, this one is well worth picking up.
The premise is instantly intriguing. Joe Sinclair is locked away in an isolated room at Hollowpines psychiatric hospital, yet he’s confessing to a brutal murder he seemingly couldn’t have committed. What makes it even more unsettling is the level of detail he knows about the crime, the kind of details only the killer should know. It immediately sets up an impossible puzzle that had me constantly questioning what was really going on.
I really enjoyed following DC Abby Fox as the investigation unfolds. Having only just returned to work after being suspended, she’s clearly carrying a lot with her, and that vulnerability makes her a compelling character to follow. As Abby digs deeper into what happened, the case becomes increasingly complicated, and the tension steadily builds.
The setting of Hollowpines adds an unsettling, and claustrophobic atmosphere to the story.There’s a constant sense of paranoia which only intensifies as the investigation progresses.
As the story progresses, the darker and more unsettling things become. Sam Holland does a great job of layering the mystery and introducing twists that kept me second guessing throughout.
Overall, this was a dark, twisted thriller that kept me fully invested in the mystery. If you enjoy crime novels with a strong sense of suspense and plenty of surprises along the way, this one is well worth picking up.
March 6, 2026
Thank you so much to Netgalley for giving me this free advance copy, and I’m writing this review honestly and without bias.
Whether she's writing as Sam Holland or Louisa Scarr this is an author at the very top of her game. This is another cracking edition to the Major Crimes series. Flawless writing, a very clever crafted plot, a relentless pace and suspects galore - what more could you ask for in a book. The atmosphere is dark yet electric, Hollowpines is wonderfully eerie and a highly fascinating subject adds to the intrigue. I'm fast running out of superlatives for this very talented author, but suffice to say she has another winner on her hands. Outstanding and all the stars for this one
May 9, 2026
4.5⭐️
I absolutely flew through this. To the point that I was literally taking my kindle with me while running errands because I needed to keep reading.
Joe’s situation hooked me immediately. He’s locked inside a psychiatric facility, yet somehow knows intimate details about brutal murders that have just occurred — including details that haven’t been released to the public. The impossible nature of it all made this so addictive because I was constantly trying to work out how any of it was possible.
The psychiatric facility setting works so well here too. Hollowpines feels claustrophobic, unsettling and full of people hiding things. I constantly felt on edge, and every time I thought I had a handle on where things were heading, another layer was revealed.
This was dark, graphic and seriously addictive. The short chapters, multiple POVs and constant reveals made this incredibly easy to binge read, and I genuinely struggled to put it down.
I did predict part of the ending before it happened, but it honestly didn’t affect my enjoyment at all because I was having such a good time getting there.
This was my first Sam Holland book, and it definitely won’t be my last.
I absolutely flew through this. To the point that I was literally taking my kindle with me while running errands because I needed to keep reading.
Joe’s situation hooked me immediately. He’s locked inside a psychiatric facility, yet somehow knows intimate details about brutal murders that have just occurred — including details that haven’t been released to the public. The impossible nature of it all made this so addictive because I was constantly trying to work out how any of it was possible.
The psychiatric facility setting works so well here too. Hollowpines feels claustrophobic, unsettling and full of people hiding things. I constantly felt on edge, and every time I thought I had a handle on where things were heading, another layer was revealed.
This was dark, graphic and seriously addictive. The short chapters, multiple POVs and constant reveals made this incredibly easy to binge read, and I genuinely struggled to put it down.
I did predict part of the ending before it happened, but it honestly didn’t affect my enjoyment at all because I was having such a good time getting there.
This was my first Sam Holland book, and it definitely won’t be my last.
April 3, 2026
The Killer in Room Five is a fast-paced, intense thriller set within a secure psychiatric unit, where both patients and staff harbour dark secrets. The cast is unsettling and complex, with traumatic pasts gradually revealed, adding depth and tension throughout. Hollowpines provides a chilling backdrop that reinforces the sense that nothing is quite as it seems.
This was my first read by Sam Holland, and it delivered the eerie atmosphere I was hoping for. It did take a little time to fully engage, with the narrative initially feeling somewhat clunky. However, as the story unfolds, the structure becomes clearer—reminiscent of a Magic Eye puzzle, where the bigger picture only comes into focus partway through.
The inclusion of residents’ backstories was particularly effective, heightening suspense while deepening my understanding of the characters. Although I was able to predict the ending, this didn’t detract from my enjoyment; if anything, I found myself more captivated by the hidden past than the central whodunnit.
Overall, an engaging and atmospheric read.
This was my first read by Sam Holland, and it delivered the eerie atmosphere I was hoping for. It did take a little time to fully engage, with the narrative initially feeling somewhat clunky. However, as the story unfolds, the structure becomes clearer—reminiscent of a Magic Eye puzzle, where the bigger picture only comes into focus partway through.
The inclusion of residents’ backstories was particularly effective, heightening suspense while deepening my understanding of the characters. Although I was able to predict the ending, this didn’t detract from my enjoyment; if anything, I found myself more captivated by the hidden past than the central whodunnit.
Overall, an engaging and atmospheric read.
March 15, 2026
Having previously read all the other Sam Holland books, I was grateful to Netgalley for this advanced reader copy. Not the same characters as the other novels , we have DC Abby Fox who goes to a psychiatric hospital to meet a patient who dreams of murders. Fast paced with several twists and although I saw the ending coming I still really enjoyed the story.
April 30, 2026
Rating 4.5⭐️
Wow Sam Holland writes the best books. I absolutely loved this one and I really enjoyed a certain element in this book which I won’t spoil but it really kept me hooked and intrigued. I did see where the ending was going so dropped half a star for that but otherwise a fab book.
Wow Sam Holland writes the best books. I absolutely loved this one and I really enjoyed a certain element in this book which I won’t spoil but it really kept me hooked and intrigued. I did see where the ending was going so dropped half a star for that but otherwise a fab book.
April 14, 2026
Wha a great book! Loved the echoman and wasn’t so keen on others but this one was back up there! Brilliant book, mysterious and thrilling!
Review of advance copy received from Publisher
I’ve read all three of Sam Holland’s Major Crime series books, along with her two standalone novels, so I was really excited to read The Killer in Room Five, and it didn't disappoint—it's a gripping, claustrophobic thriller that kept me hooked from the very first page! This gritty, dark, and twisty story will keep you on the edge of your seat, making you stay up late just to find out what happens next. Although it isn’t as dark or as gruesome as Holland’s earlier books, the premise is instantly captivating.
When Joe Sinclair, a patient at Hollowpines psychiatric hospital, confesses to a murder, DC Abby Fox is assigned to take his statement. Fresh from her year-long suspension, Abby returns to Major Crimes determined to prove herself. DC Abby Fox's vulnerability and self-doubt make her a compelling and formidable protagonist.
Joe Sinclair is locked away in an isolated room, yet he’s confessing to a brutal murder he seemingly couldn’t have committed. What makes it even more unsettling is the level of detail he knows about the crime—details only the killer should know. It immediately creates a complex puzzle that has me second-guessing what's really going on. Joe Sinclair emerges as a complex and intriguing character. While I often doubted his decisions and reliability, I couldn’t help but feel empathy for him. Holland vividly depicts his fear and vulnerability, making it impossible not to root for him.
Holland masterfully weaves a chilling, unsettling claustrophobia into the narrative, filled with vivid atmosphere and sometimes deeply disturbing details-brace yourself, this isn't for the faint of heart. But for lovers of hard-edged police procedurals, at its core, the story explores how fragile memory can be and how easily it can deceive, adding a compelling layer of complexity to an already gripping plot. As Abby delves deeper into what happened, the case becomes increasingly complex, and the tension steadily rises.
As the story unfolds, darker and more unsettling elements come to light. Sam Holland is a master at vividly portraying an unsettling atmosphere, layering the mystery and weaving in twists that kept me questioning everything I thought I knew.
Overall, this was a dark, twisted thriller that kept me fully engaged with the mystery. If you enjoy police procedurals filled with suspense and plenty of twists along the way, I highly recommend adding this to your TBR list—expected publication date: May 21, 2026.
I want to thank NetGalley and the marketing team at HarperCollins UK for providing me with an ARC in exchange for an honest review.
When Joe Sinclair, a patient at Hollowpines psychiatric hospital, confesses to a murder, DC Abby Fox is assigned to take his statement. Fresh from her year-long suspension, Abby returns to Major Crimes determined to prove herself. DC Abby Fox's vulnerability and self-doubt make her a compelling and formidable protagonist.
Joe Sinclair is locked away in an isolated room, yet he’s confessing to a brutal murder he seemingly couldn’t have committed. What makes it even more unsettling is the level of detail he knows about the crime—details only the killer should know. It immediately creates a complex puzzle that has me second-guessing what's really going on. Joe Sinclair emerges as a complex and intriguing character. While I often doubted his decisions and reliability, I couldn’t help but feel empathy for him. Holland vividly depicts his fear and vulnerability, making it impossible not to root for him.
Holland masterfully weaves a chilling, unsettling claustrophobia into the narrative, filled with vivid atmosphere and sometimes deeply disturbing details-brace yourself, this isn't for the faint of heart. But for lovers of hard-edged police procedurals, at its core, the story explores how fragile memory can be and how easily it can deceive, adding a compelling layer of complexity to an already gripping plot. As Abby delves deeper into what happened, the case becomes increasingly complex, and the tension steadily rises.
As the story unfolds, darker and more unsettling elements come to light. Sam Holland is a master at vividly portraying an unsettling atmosphere, layering the mystery and weaving in twists that kept me questioning everything I thought I knew.
Overall, this was a dark, twisted thriller that kept me fully engaged with the mystery. If you enjoy police procedurals filled with suspense and plenty of twists along the way, I highly recommend adding this to your TBR list—expected publication date: May 21, 2026.
I want to thank NetGalley and the marketing team at HarperCollins UK for providing me with an ARC in exchange for an honest review.
Review of advance copy received from NetGalley
I have read and loved quite a lot of this author's previous books - including the ones written as Louisa Scarr - and I have to say that, although I enjoyed this book nearly as much, I do have certain reservations...
We start with a bit of a conundrum... Joe Sinclair, a patient in a psychiatric hospital, confesses to a brutal crime. Thing is, he 100% nailed on couldn't have done it, being locked up and all! But he has details, so many details that he couldn't possibly have known if he hadn't been there and done that...
DC Abbey Fox is returning back to work after being suspended for a year after a colleague got stabbed and certain of her actions leading up needed to be investigated. Coincidentally, the colleague is also returning to work at the same time, albeit on light duties. You can imagine the atmosphere and the need for her boss to try and keep Abby out of any repercussions. I mean, she was cleared of all responsibility, but there is still a lot of blame...
So, what better place to squirrel her away than Hollowpines, the aforementioned hospital, to interview Joe and against all odds, try and work out what in the heck is going on...
And so begins a rather interesting and intriguing case that held my attention pretty much all the way until I started to work out what was really happening, who and why, and then my eyes started rolling as I realised the truth... And then I got grumpy cos, without trying to spoil anything for anyone, I have to say that this is one of my big bugbears... I know it's not the author's fault, it's a me thing. But it was going so well, and with her track record, I had high hopes for a cracking run up and eventual ending, until we went there...
That said, the rest of the book was quality. The plot was well worked out, and ably executed - if not to my liking I can at least admit that! And the characters all played their parts well. And it all did get on with itself very well indeed.
But, as they say, one swallow doesn't make a summer and, I do admit that it is my own fault that I didn't like the ending, and at least it all made sense and flowed... so it will in no way stop me pouncing on her next book as soon as I can get my mitts on it...
My thanks go to the Publisher and Netgalley for the chance to read this book.
We start with a bit of a conundrum... Joe Sinclair, a patient in a psychiatric hospital, confesses to a brutal crime. Thing is, he 100% nailed on couldn't have done it, being locked up and all! But he has details, so many details that he couldn't possibly have known if he hadn't been there and done that...
DC Abbey Fox is returning back to work after being suspended for a year after a colleague got stabbed and certain of her actions leading up needed to be investigated. Coincidentally, the colleague is also returning to work at the same time, albeit on light duties. You can imagine the atmosphere and the need for her boss to try and keep Abby out of any repercussions. I mean, she was cleared of all responsibility, but there is still a lot of blame...
So, what better place to squirrel her away than Hollowpines, the aforementioned hospital, to interview Joe and against all odds, try and work out what in the heck is going on...
And so begins a rather interesting and intriguing case that held my attention pretty much all the way until I started to work out what was really happening, who and why, and then my eyes started rolling as I realised the truth... And then I got grumpy cos, without trying to spoil anything for anyone, I have to say that this is one of my big bugbears... I know it's not the author's fault, it's a me thing. But it was going so well, and with her track record, I had high hopes for a cracking run up and eventual ending, until we went there...
That said, the rest of the book was quality. The plot was well worked out, and ably executed - if not to my liking I can at least admit that! And the characters all played their parts well. And it all did get on with itself very well indeed.
But, as they say, one swallow doesn't make a summer and, I do admit that it is my own fault that I didn't like the ending, and at least it all made sense and flowed... so it will in no way stop me pouncing on her next book as soon as I can get my mitts on it...
My thanks go to the Publisher and Netgalley for the chance to read this book.
Review of advance copy received from NetGalley
My Rating: 4⭐️⭐️⭐️⭐️ Full throttle, in your face thrill kill!! Sam Holland at her best!!
A terrible confession
In an isolated room in Hollowpines, an infamous psychiatric hospital, Joe Sinclair is confessing to a violent murder.
An impossible crime
Locked away, Joe couldn't possibly have killed the man, so how does he know so many of the horrifying details?
A detective at her limits
Suspended after a colleague was stabbed on her watch, DC Abby Fox has only just returned to work. But at Hollowpines, she must find out what really happened and how exactly Joe is involved.
Is he to blame, or the only one who can stop the killer?
Ok so Sam Holland is back and she is kicking the door in with her latest thriller!! It is off the chain, which is pretty standard for her.
I know what to expect with her novels they are well Written and engaging but they are only for people who can grab their disbelief package that shit up and throw it right over the side of a mountain… these books are for entertainment not reality. And to be honest when you lean into that you just have the best time.
I was disappointed to find out that this was a locked door mystery one of my least faves HOWEVER Sam has pulled this one off so well that I really enjoyed it.. and she got me …. That twist was a bit of a shocker!!! I was second guessing every character except the one that was the baddie 🤣 so it was a nice surprise.
There are some seriously violent crimes in this book so if you don’t like that then … well you need to look elsewhere. But for those of us who like our thrillers gory - this is for you.
I was also happy to see that this major crimes novel had completely different characters to the other Sam Holland books and I really liked DC Abby Fox I am really looking forward to reading more about her and her adventures. She is a really good FMC.
Overall, I was impressed with this one… I enjoyed it and it kept me guessing I can’t ask for much more than that.
Thank you to Hemlock Press, NetGalley and Sam Holland for an advanced copy in exchange for my honest review.
A terrible confession
In an isolated room in Hollowpines, an infamous psychiatric hospital, Joe Sinclair is confessing to a violent murder.
An impossible crime
Locked away, Joe couldn't possibly have killed the man, so how does he know so many of the horrifying details?
A detective at her limits
Suspended after a colleague was stabbed on her watch, DC Abby Fox has only just returned to work. But at Hollowpines, she must find out what really happened and how exactly Joe is involved.
Is he to blame, or the only one who can stop the killer?
Ok so Sam Holland is back and she is kicking the door in with her latest thriller!! It is off the chain, which is pretty standard for her.
I know what to expect with her novels they are well Written and engaging but they are only for people who can grab their disbelief package that shit up and throw it right over the side of a mountain… these books are for entertainment not reality. And to be honest when you lean into that you just have the best time.
I was disappointed to find out that this was a locked door mystery one of my least faves HOWEVER Sam has pulled this one off so well that I really enjoyed it.. and she got me …. That twist was a bit of a shocker!!! I was second guessing every character except the one that was the baddie 🤣 so it was a nice surprise.
There are some seriously violent crimes in this book so if you don’t like that then … well you need to look elsewhere. But for those of us who like our thrillers gory - this is for you.
I was also happy to see that this major crimes novel had completely different characters to the other Sam Holland books and I really liked DC Abby Fox I am really looking forward to reading more about her and her adventures. She is a really good FMC.
Overall, I was impressed with this one… I enjoyed it and it kept me guessing I can’t ask for much more than that.
Thank you to Hemlock Press, NetGalley and Sam Holland for an advanced copy in exchange for my honest review.
Review of advance copy received from Netgalley
The Killer in Room Five is now officially my favourite Sam Holland book. This gruesome, twisty thriller will keep you turning pages well past your bedtime. Whether you’re a long-time fan or new to Sam Holland’s work, you can expect a gripping and unforgettable read when you pick this one up.
Holland delivers a dark and unsettling story, packed with graphic detail that may be a little intense for sensitive readers—but for fans of hard-hitting crime fiction, this is easily one of the best thrillers I’ve read this year. At its core, the novel explores the fragility of memory and just how unreliable it can be, which adds an extra layer of intrigue to an already compelling plot.
When Joe Sinclair, a patient at Hollowpines—an infamous psychiatric hospital—confesses to murder, DC Abby Fox is assigned to take his statement. Abby is returning to Major Crimes after a twelve-month suspension following the stabbing of a colleague, and she knows she won’t be welcomed back easily. Determined to prove herself, she heads to Hollowpines to interview Joe. However, he turns out to be nothing like she expected. Abby must unravel how Joe knows intimate details about a crime he seemingly could not have committed.
From the very first chapters, Sam Holland had me completely engrossed. The crimes are brutal, but what makes the story even more compelling is how grounded and believable the characters feel. I found myself forming strong opinions about everyone very quickly. The exploration of memory—and how easily it can be influenced—kept me constantly second-guessing what I thought I knew. In particular, the idea that suggestion can shape memory made me deeply suspicious of Dr Lewis Devaney.
Joe Sinclair is a fascinating character. While I often questioned his reliability, I couldn’t help but feel empathy towards him. He is deeply troubled, and Holland does an excellent job of bringing his fear and vulnerability to life, making it impossible not to root for him—even when doubt lingers.
DC Abby Fox is a strong and engaging protagonist. She’s riddled with self-doubt but fiercely determined to prove her worth after her suspension. The tension between her and Callum adds another layer of complexity to the story and keeps the emotional stakes high.
If I had to choose a standout character, it would have to be Bridget Anderson. She adds real depth to the narrative. Though she is a murderer, the more we learn about her, the more she becomes a fully realised and deeply human character—one you can’t help but empathise with.
There’s no question that I loved this book. For me, this is Sam Holland’s best novel to date—a five-star read from beginning to end.
If you enjoy dark, gruesome thrillers that don’t shy away from graphic detail, then this is a book you absolutely should not miss. I cannot recommend it highly enough.
https://featzreviews.com/review-the-k...
Holland delivers a dark and unsettling story, packed with graphic detail that may be a little intense for sensitive readers—but for fans of hard-hitting crime fiction, this is easily one of the best thrillers I’ve read this year. At its core, the novel explores the fragility of memory and just how unreliable it can be, which adds an extra layer of intrigue to an already compelling plot.
When Joe Sinclair, a patient at Hollowpines—an infamous psychiatric hospital—confesses to murder, DC Abby Fox is assigned to take his statement. Abby is returning to Major Crimes after a twelve-month suspension following the stabbing of a colleague, and she knows she won’t be welcomed back easily. Determined to prove herself, she heads to Hollowpines to interview Joe. However, he turns out to be nothing like she expected. Abby must unravel how Joe knows intimate details about a crime he seemingly could not have committed.
From the very first chapters, Sam Holland had me completely engrossed. The crimes are brutal, but what makes the story even more compelling is how grounded and believable the characters feel. I found myself forming strong opinions about everyone very quickly. The exploration of memory—and how easily it can be influenced—kept me constantly second-guessing what I thought I knew. In particular, the idea that suggestion can shape memory made me deeply suspicious of Dr Lewis Devaney.
Joe Sinclair is a fascinating character. While I often questioned his reliability, I couldn’t help but feel empathy towards him. He is deeply troubled, and Holland does an excellent job of bringing his fear and vulnerability to life, making it impossible not to root for him—even when doubt lingers.
DC Abby Fox is a strong and engaging protagonist. She’s riddled with self-doubt but fiercely determined to prove her worth after her suspension. The tension between her and Callum adds another layer of complexity to the story and keeps the emotional stakes high.
If I had to choose a standout character, it would have to be Bridget Anderson. She adds real depth to the narrative. Though she is a murderer, the more we learn about her, the more she becomes a fully realised and deeply human character—one you can’t help but empathise with.
There’s no question that I loved this book. For me, this is Sam Holland’s best novel to date—a five-star read from beginning to end.
If you enjoy dark, gruesome thrillers that don’t shy away from graphic detail, then this is a book you absolutely should not miss. I cannot recommend it highly enough.
https://featzreviews.com/review-the-k...
Review of advance copy received from NetGalley
Joseph Sinclair has confessed to a brutal murder. The only problem is that when the murder took place, Joe was a patient in a psychiatric hospital. The police are puzzled as to how he can have such detailed knowledge of the crime if he wasn't present.
Author Sam Holland has written some of my favourite police procedural/serial killer thrillers of recent years, so I relished the opportunity to read The Killer In Room Five. The story certainly lived up to my expectations; if you like your thrillers on the dark side, then this fits the bill.
The opening pages set the tone for the narrative: bloody, frantic and terrifying. From this opening, we are introduced to DC Abby Fox, who is returning to work following a year's suspension. The reason for the suspension isn't immediately clear and adds to Abby's mysteriousness and vulnerability. Abby is sent to interview Joe at Hollowpines, the private psychiatric hospital where he has been a patient for the past month.
Joe is a sympathetic character; he is completely aware of his illness and terrified about what he may have done. Alongside Joe, we meet a range of other characters at the hospital, many of whom seem to be supportive and genuine, but you soon begin to doubt everyone.
A combination of unexplained murders, a building with an unpleasant history, and patients with shocking backgrounds all add to keep the reader on edge. The backstory of some of the more dangerous patients is enough to make you want to sleep with the lights on. I was also intrigued as to whether these characters are based on real-life murderers or simply a result of the twisted imagination of the author.
Although I'd figured out who the killer was relatively quickly, it didn't spoil my enjoyment as I couldn't work out how and why. The author manages to keep the conclusion a complete mystery until the very end. The ending, with karma leaving its calling card, certainly isn't for the faint-hearted.
If you enjoyed my review please check out my book blog, Reading For Leisure
https://readingforleisure.blogspot.com/
or follow me on:-
Twitter; @Debbie_Hart_UK
Instagram; @reading_for_leisure_blog
Author Sam Holland has written some of my favourite police procedural/serial killer thrillers of recent years, so I relished the opportunity to read The Killer In Room Five. The story certainly lived up to my expectations; if you like your thrillers on the dark side, then this fits the bill.
The opening pages set the tone for the narrative: bloody, frantic and terrifying. From this opening, we are introduced to DC Abby Fox, who is returning to work following a year's suspension. The reason for the suspension isn't immediately clear and adds to Abby's mysteriousness and vulnerability. Abby is sent to interview Joe at Hollowpines, the private psychiatric hospital where he has been a patient for the past month.
Joe is a sympathetic character; he is completely aware of his illness and terrified about what he may have done. Alongside Joe, we meet a range of other characters at the hospital, many of whom seem to be supportive and genuine, but you soon begin to doubt everyone.
A combination of unexplained murders, a building with an unpleasant history, and patients with shocking backgrounds all add to keep the reader on edge. The backstory of some of the more dangerous patients is enough to make you want to sleep with the lights on. I was also intrigued as to whether these characters are based on real-life murderers or simply a result of the twisted imagination of the author.
Although I'd figured out who the killer was relatively quickly, it didn't spoil my enjoyment as I couldn't work out how and why. The author manages to keep the conclusion a complete mystery until the very end. The ending, with karma leaving its calling card, certainly isn't for the faint-hearted.
If you enjoyed my review please check out my book blog, Reading For Leisure
https://readingforleisure.blogspot.com/
or follow me on:-
Twitter; @Debbie_Hart_UK
Instagram; @reading_for_leisure_blog
Review of advance copy received from Netgalley
This is a standalone novel from Sam Holland, not part of the Echo Man Major Crimes series but still set in a major crimes police department.
Detective Abby Fox returns to work after a year of being suspended. Her first job - to go and interview a patient at Hollowpines psychiatric hospital who has had a vivid nightmare in which he brutally murdered a man, and he fears it was a memory of a real event.
On the same morning, reports come in of a murder in the early hours that sounds exactly like the patient’s nightmare.
As Abby and her team investigate, and more murders take place, it seems too much of a coincidence how much patient Joe knows about the crimes when he’s had no chance of leaving the hospital…
Oh this was so great! I love Sam’s Major Crimes series and feel like her books are just getting better and better. This was my favourite of hers so far!
As we are used to with Sam’s books, there are some quite brutal, gruesome and disturbing scenes, and she creates such a wonderfully creepy atmosphere with Hollowpines and its maze-like, ghostly setting.
I was pleased that the subject of mental health and schizophrenia was handled very sensitively - the scary elements of Hollowpines came from the building, its history, the violent prisoners’ wing, and some of the dubious practices and ways of treating the patients going on.
Hearing from Joe’s perspective gave a sensitive insight to how scary his symptoms felt to him, and his struggles to understand whether his nightmares were real memories or not.
The characters all had a lot of depth to them. Abby is recently back at work after being suspended for a year and we slowly find out the full story as to why. And boss Callum has his own secrets and struggles.
Towards the end it got sooo intense and suspenseful, I couldn’t read it fast enough! I loved the really clever way everything was explained, it was so twisty and had a very strangely satisfying conclusion!
Detective Abby Fox returns to work after a year of being suspended. Her first job - to go and interview a patient at Hollowpines psychiatric hospital who has had a vivid nightmare in which he brutally murdered a man, and he fears it was a memory of a real event.
On the same morning, reports come in of a murder in the early hours that sounds exactly like the patient’s nightmare.
As Abby and her team investigate, and more murders take place, it seems too much of a coincidence how much patient Joe knows about the crimes when he’s had no chance of leaving the hospital…
Oh this was so great! I love Sam’s Major Crimes series and feel like her books are just getting better and better. This was my favourite of hers so far!
As we are used to with Sam’s books, there are some quite brutal, gruesome and disturbing scenes, and she creates such a wonderfully creepy atmosphere with Hollowpines and its maze-like, ghostly setting.
I was pleased that the subject of mental health and schizophrenia was handled very sensitively - the scary elements of Hollowpines came from the building, its history, the violent prisoners’ wing, and some of the dubious practices and ways of treating the patients going on.
Hearing from Joe’s perspective gave a sensitive insight to how scary his symptoms felt to him, and his struggles to understand whether his nightmares were real memories or not.
The characters all had a lot of depth to them. Abby is recently back at work after being suspended for a year and we slowly find out the full story as to why. And boss Callum has his own secrets and struggles.
Towards the end it got sooo intense and suspenseful, I couldn’t read it fast enough! I loved the really clever way everything was explained, it was so twisty and had a very strangely satisfying conclusion!
Review of advance copy received from NetGalley
A masterclass in tension
I have read some of Sam's previous books and they have all been excellent, so I was incredibly excited to get my hands on this one. I can happily report that this is no exception. From the very first page, it grabs you by the throat and just does not let go.
While this one is a standalone and not part of a series, if you've read her previous books, you will know exactly how twisted her mind can be. The story sets up an incredible premise based in Hollowpines, an infamous psychiatric hospital. A patient named Joe Sinclair is locked away in an isolated room confessing to a brutal murder, yet it's seemingly an impossible crime because there's no way he could have physically done it. The mystery of how he knows such explicit, horrifying details is what sets off a dark, intensely clever plot that keeps you guessing.
The hospital setting is brilliantly atmospheric - it feels incredibly heavy and claustrophobic – and the pacing is spot on. I found myself racing through the chapters late into the night because I just had to know how everything was going to unravel.
What I love most about Sam Holland's writing is the ability to create flawed, deeply human characters. DC Abby Fox is a fantastic protagonist – she is returning to work after a tough suspension and is riddled with self-doubt but fiercely determined to prove her worth. The psychological element of how easily human memory can be influenced or warped by suggestion adds an extra layer of intrigue that kept me constantly second-guessing who to trust.
If you are a fan of psychological thrillers that are fast-paced, clever and a little bit gruesome, you definitely need to add this to your reading list. It's easily one of the best books I have read this year so far.
Huge thanks to the author, Harper Collins UK, Harper Fiction, Hemlock Press and NetGalley for enabling me to read and share my thoughts of another excellent book from Sam Holland.
I have read some of Sam's previous books and they have all been excellent, so I was incredibly excited to get my hands on this one. I can happily report that this is no exception. From the very first page, it grabs you by the throat and just does not let go.
While this one is a standalone and not part of a series, if you've read her previous books, you will know exactly how twisted her mind can be. The story sets up an incredible premise based in Hollowpines, an infamous psychiatric hospital. A patient named Joe Sinclair is locked away in an isolated room confessing to a brutal murder, yet it's seemingly an impossible crime because there's no way he could have physically done it. The mystery of how he knows such explicit, horrifying details is what sets off a dark, intensely clever plot that keeps you guessing.
The hospital setting is brilliantly atmospheric - it feels incredibly heavy and claustrophobic – and the pacing is spot on. I found myself racing through the chapters late into the night because I just had to know how everything was going to unravel.
What I love most about Sam Holland's writing is the ability to create flawed, deeply human characters. DC Abby Fox is a fantastic protagonist – she is returning to work after a tough suspension and is riddled with self-doubt but fiercely determined to prove her worth. The psychological element of how easily human memory can be influenced or warped by suggestion adds an extra layer of intrigue that kept me constantly second-guessing who to trust.
If you are a fan of psychological thrillers that are fast-paced, clever and a little bit gruesome, you definitely need to add this to your reading list. It's easily one of the best books I have read this year so far.
Huge thanks to the author, Harper Collins UK, Harper Fiction, Hemlock Press and NetGalley for enabling me to read and share my thoughts of another excellent book from Sam Holland.
Review of advance copy received from Netgalley
DC Abby Fox is back to work after a years suspension. She is sent to Hollowpines Psychiatric Hospital to interview a patient. Joseph Sinclair is an inpatient who is convinced he kills someone the previous night despite the tight security, locked doors and CCTV. However, this morning’s news headlines seemed to back his story up which is further confirmed by the crime scene evidence. How is it even possible? Abby is determined to get to the bottom of this exceptionally tricky and dangerous case. How is Joe involved? Can he help catch a killer?
Oh. My. Days. Sam Holland has done it again. This is another absolutely gripping thriller and a puzzle and a half which is told at a fast pace. It’s brim full of heart stopping tension as there’s so much evil here and it goes from bad to worse. In addition, there are multiple moments of suspense and as for the twists, they’re darkly twisted. Some parts of the plot you need to brace yourselves because …. those images…! You’ve been warned! It’s fair to say the author has a rich imagination though it’s definitely got it’s dark corners.
The setting principally at Hollowpines gives the author a huge amount of atmospheric scope. This is one creepy and chilling place which is utilised to the max especially in some of the dubious techniques used by Dr Delaney, the man in charge. It’s very unsettling and although there are some very damaged people here, their issues are handled well especially with regard to Joe. All the characters are portrayed really well and I especially like Abby, who has her issues but is determined to overcome them and do her best particularly for Joe.
Overall, this is another cracking thriller from this talented author and although I do figure out parts of it, it doesn’t spoil the reveals in the very dramatic ending. Five easy stars.
With thanks to NetGalley and especially to HarperCollins, HarperFiction/Hemlock Press for the much appreciated early copy in return for an honest review.
Oh. My. Days. Sam Holland has done it again. This is another absolutely gripping thriller and a puzzle and a half which is told at a fast pace. It’s brim full of heart stopping tension as there’s so much evil here and it goes from bad to worse. In addition, there are multiple moments of suspense and as for the twists, they’re darkly twisted. Some parts of the plot you need to brace yourselves because …. those images…! You’ve been warned! It’s fair to say the author has a rich imagination though it’s definitely got it’s dark corners.
The setting principally at Hollowpines gives the author a huge amount of atmospheric scope. This is one creepy and chilling place which is utilised to the max especially in some of the dubious techniques used by Dr Delaney, the man in charge. It’s very unsettling and although there are some very damaged people here, their issues are handled well especially with regard to Joe. All the characters are portrayed really well and I especially like Abby, who has her issues but is determined to overcome them and do her best particularly for Joe.
Overall, this is another cracking thriller from this talented author and although I do figure out parts of it, it doesn’t spoil the reveals in the very dramatic ending. Five easy stars.
With thanks to NetGalley and especially to HarperCollins, HarperFiction/Hemlock Press for the much appreciated early copy in return for an honest review.
Review of advance copy received from Netgalley
The Killer in Room Five is a taut, quietly unnerving thriller that thrives on the tension between what’s said, what’s withheld, and what simply doesn’t add up. From the moment Joe Sinclair begins confessing to a murder he couldn’t possibly have committed, the story settles into that deliciously disorienting space where every detail feels both revealing and suspect.
The novel’s greatest strength lies in the atmosphere of Hollowpines itself—an institution steeped in silence, rumour, and the kind of institutional decay that makes you question every shadow. Joe’s confession is chilling not because of gore, but because of its precision, its intimacy, its impossible accuracy. It’s the sort of mystery that prickles at the back of your neck: if he didn’t do it, how does he know so much?
DC Abby Fox is a compelling anchor throughout. Bruised by her recent suspension and desperate to prove she still belongs in the job, she brings a raw, human vulnerability to the investigation. Her return to work isn’t triumphant; it’s tentative, haunted, and threaded with doubt. Watching her navigate Hollowpines—its staff, its secrets, its shifting loyalties—adds a grounded emotional weight to the puzzle.
The plot moves with a steady, unsettling rhythm, layering misdirection and revelation with just enough restraint to keep you leaning forward. The question at the heart of the book—whether Joe is the monster or the only one who can stop the real killer—gives the story a sharp moral edge. Nothing is simple, and no one is quite what they seem.
It’s an atmospheric, character-driven thriller that blends psychological tension with a locked-room mystery feel, perfect for readers who enjoy stories where the truth is always just out of reach, waiting to be coaxed into the light.
with thanks to Sam Holland, the publisher and netgalley for the ARC
The novel’s greatest strength lies in the atmosphere of Hollowpines itself—an institution steeped in silence, rumour, and the kind of institutional decay that makes you question every shadow. Joe’s confession is chilling not because of gore, but because of its precision, its intimacy, its impossible accuracy. It’s the sort of mystery that prickles at the back of your neck: if he didn’t do it, how does he know so much?
DC Abby Fox is a compelling anchor throughout. Bruised by her recent suspension and desperate to prove she still belongs in the job, she brings a raw, human vulnerability to the investigation. Her return to work isn’t triumphant; it’s tentative, haunted, and threaded with doubt. Watching her navigate Hollowpines—its staff, its secrets, its shifting loyalties—adds a grounded emotional weight to the puzzle.
The plot moves with a steady, unsettling rhythm, layering misdirection and revelation with just enough restraint to keep you leaning forward. The question at the heart of the book—whether Joe is the monster or the only one who can stop the real killer—gives the story a sharp moral edge. Nothing is simple, and no one is quite what they seem.
It’s an atmospheric, character-driven thriller that blends psychological tension with a locked-room mystery feel, perfect for readers who enjoy stories where the truth is always just out of reach, waiting to be coaxed into the light.
with thanks to Sam Holland, the publisher and netgalley for the ARC
Review of advance copy received from NetGalley
“The Killer in Room Five” is one creepy book. I was reading a scene with someone in Hollowpines late at night and the door handle moving. I was actually staying in a hotel at the time. I may have actually turned an extra light on. Or two.
DC Abby Fox has been in a bit of trouble. That trouble has led to animosity between her and her father. This trouble also led to her having some time off. Like, as in a year off. She has maintained her innocence throughout.
She is now back at work and her former lover (he was married at the time) is now her boss. Her first case is what drew me to this book. You see, a young man is a patient (some would say client) at Hollowpines. He has had a nightmare of killing someone. What makes him of interest, despite being locked away at a psychiatric hospital, is that on the same night, a man was killed exactly as he saw in his dream. That is all I am going to say about the plot of this book. It should be enough to get you to want to read it. It is a brilliant premise.
The pacing of the book is slow and methodical as a procedural should be. The author, Sam Holland, does a good job of making you question the reality of several situations and relationships. I actually figured out who the killer was (even though if you count the patients on the D Wing, there are quite a few in this book) by the halfway point. I was so sure I had it right. The brilliance of Holland’s writing actually had me second guessing myself several times towards the end of the book.
There is a bit of suspension of disbelief that you will need to have from time to time in reading this, but it is fiction. Just sit back and enjoy the story.
I received this ARC from NetGalley and the publisher in exchange for an unbiased review.
DC Abby Fox has been in a bit of trouble. That trouble has led to animosity between her and her father. This trouble also led to her having some time off. Like, as in a year off. She has maintained her innocence throughout.
She is now back at work and her former lover (he was married at the time) is now her boss. Her first case is what drew me to this book. You see, a young man is a patient (some would say client) at Hollowpines. He has had a nightmare of killing someone. What makes him of interest, despite being locked away at a psychiatric hospital, is that on the same night, a man was killed exactly as he saw in his dream. That is all I am going to say about the plot of this book. It should be enough to get you to want to read it. It is a brilliant premise.
The pacing of the book is slow and methodical as a procedural should be. The author, Sam Holland, does a good job of making you question the reality of several situations and relationships. I actually figured out who the killer was (even though if you count the patients on the D Wing, there are quite a few in this book) by the halfway point. I was so sure I had it right. The brilliance of Holland’s writing actually had me second guessing myself several times towards the end of the book.
There is a bit of suspension of disbelief that you will need to have from time to time in reading this, but it is fiction. Just sit back and enjoy the story.
I received this ARC from NetGalley and the publisher in exchange for an unbiased review.
Review of advance copy received from NetGalley
Joe Sinclair is a patient in the private psychiatric hospital Hollowpines and he's confessing to a murder that is impossible for him to have committed, because he has been in there for the last four weeks and this murder has only just happened but, if Joe isn't the killer, how does he know the details that haven't even been released yet? DC Abby Fox, a detective with the MIT is returning to work after a year long suspension and, on her first day back, is sent to speak to Joe to find out what he knows, how can he be involved if he has no contact with the outside world? Abby is certain it's not him but could he know enough to lead them to the killer?
The Killer in Room Five is the latest thriller in this series and, as with her previous books, this author expertly draws you into the story from the first page. This is a tense, compelling read that is not for the faint hearted due to the descriptive chapters that Holland produces to make this an exhilarating, yet terrifying rollercoaster of a read. The characters are realistic and I especially loved Abby who knows she has a lot of making up to do after the stabbing of her colleague, even though it's been declared that it wasn't her fault. I also adored Joe, who just wanted to get his head straight and start living his life again, but the hallucinations have other ideas for him and he's certain he knows something about the murders, he just needs to be able to remember what happened in the past. This is another exciting read with an explosive ending you won't see coming.
I'd like to thank HarperCollins UK, HarperFiction and Netgalley for the auto approval, I will post my review on Goodreads now and Amazon on publication day.
The Killer in Room Five is the latest thriller in this series and, as with her previous books, this author expertly draws you into the story from the first page. This is a tense, compelling read that is not for the faint hearted due to the descriptive chapters that Holland produces to make this an exhilarating, yet terrifying rollercoaster of a read. The characters are realistic and I especially loved Abby who knows she has a lot of making up to do after the stabbing of her colleague, even though it's been declared that it wasn't her fault. I also adored Joe, who just wanted to get his head straight and start living his life again, but the hallucinations have other ideas for him and he's certain he knows something about the murders, he just needs to be able to remember what happened in the past. This is another exciting read with an explosive ending you won't see coming.
I'd like to thank HarperCollins UK, HarperFiction and Netgalley for the auto approval, I will post my review on Goodreads now and Amazon on publication day.
Review of advance copy received from Netgalley
In an isolated room in Hollowpines psychiatric hospital, Joe is confessing to a murder he couldn’t possibly have committed. But how does he know so many details? DC Abby Fox has just returned to work after suspension, but must find out what really happened and if Joe was involved. Is he to blame or the only one who can stop the killer?
Sam Holland is one of my favourite authors (including alternative names she writes in), and I always trust I will get a five star thriller, so as soon as I saw this I knew this was going straight to the top of my reading pile (I also liked the cover)! This was another strong 5 star read and every bit as dark, gruesome and terrifying as I’ve come to expect from her books. I like that she does not shy away from dark themes and find her writing style fresh and unique.
I was hooked to the creepy atmosphere and setting of Hollowpines straight away, while being drawn into the investigation. The story had plenty of misdirection, mystery and excellent twists, all which had me gripped to the pages and never knowing who to trust. The mystery element was very intriguing and I had fun trying to decipher the impossible puzzle.
I enjoyed discovering the characters, especially Joe and Abby, who had depth and felt authentic. This was a fast paced thriller that never let up the suspense, however still managed to be multi layered, gritty and clever. This has risen to one of my top reads of the year so far and Sam Holland continues to be an author I highly recommend. I’m just disappointed that I’ll now have to wait for another by her! Thanks to NetGalley and the publisher for this copy in return for an honest review.
Sam Holland is one of my favourite authors (including alternative names she writes in), and I always trust I will get a five star thriller, so as soon as I saw this I knew this was going straight to the top of my reading pile (I also liked the cover)! This was another strong 5 star read and every bit as dark, gruesome and terrifying as I’ve come to expect from her books. I like that she does not shy away from dark themes and find her writing style fresh and unique.
I was hooked to the creepy atmosphere and setting of Hollowpines straight away, while being drawn into the investigation. The story had plenty of misdirection, mystery and excellent twists, all which had me gripped to the pages and never knowing who to trust. The mystery element was very intriguing and I had fun trying to decipher the impossible puzzle.
I enjoyed discovering the characters, especially Joe and Abby, who had depth and felt authentic. This was a fast paced thriller that never let up the suspense, however still managed to be multi layered, gritty and clever. This has risen to one of my top reads of the year so far and Sam Holland continues to be an author I highly recommend. I’m just disappointed that I’ll now have to wait for another by her! Thanks to NetGalley and the publisher for this copy in return for an honest review.
Review of advance copy received from Netgalley
The Killer In Room 5 combines brutal horror with a locked room mystery, set in the confines of Hollowpines psychiatric hospital DC Abby Fox must uncover the truth when a patient confined to room 5 confesses to a murder that wasn't possible for him to commit.
Abby Fox was a fiercely strong independent FMC. She comes with her flaws & thats apparent from the beginning but her characterisation is believable. She gave emotional weight to the story as she connected with our other MC Joe as she tries to uncover the truth to his hallucinations.
Joe was a great MMC, the way his psychological conditions displayed actually made me feel for him, especially when he couldn't partake in the things he enjoyed because of the medication suppressing his own feeling & emotion. I just couldn't believe he would have murdered these people.
I appreciated the mental health rep especially in regards to treatment suppressing who you truly are including taking away the good parts & the enjoyment out of activities as I think even in the real world daily people are dealing with this.
Holland has created such an eerie atmosphere & I felt like every character could be a suspect & they all seemed to be emotionally damaged. The short, gritty chapters full of twists around each corner made this a fast paced read & it was really difficult to put down.
There is nothing cosy about this crime thriller thats for sure. A genuinely creepy story that I'd recommend for those that enjoy suspenseful psychological thrillers.
Thank you to Netgalley Harper Collins & Sam Holland for the ARC.
Abby Fox was a fiercely strong independent FMC. She comes with her flaws & thats apparent from the beginning but her characterisation is believable. She gave emotional weight to the story as she connected with our other MC Joe as she tries to uncover the truth to his hallucinations.
Joe was a great MMC, the way his psychological conditions displayed actually made me feel for him, especially when he couldn't partake in the things he enjoyed because of the medication suppressing his own feeling & emotion. I just couldn't believe he would have murdered these people.
I appreciated the mental health rep especially in regards to treatment suppressing who you truly are including taking away the good parts & the enjoyment out of activities as I think even in the real world daily people are dealing with this.
Holland has created such an eerie atmosphere & I felt like every character could be a suspect & they all seemed to be emotionally damaged. The short, gritty chapters full of twists around each corner made this a fast paced read & it was really difficult to put down.
There is nothing cosy about this crime thriller thats for sure. A genuinely creepy story that I'd recommend for those that enjoy suspenseful psychological thrillers.
Thank you to Netgalley Harper Collins & Sam Holland for the ARC.
Review of advance copy received from Netgalley
The Killer in Room Five is yet another brilliant read from Sam Holland. Her books just keep getting better—each one more deliciously dark and gory than the last, and just how I like it. The creepy atmosphere in this story is outstanding. Hollowpines, the private hospital for clients with mental health issues, is written so vividly that you can genuinely feel how unsettling and eerie it is. It adds constant tension that keeps you hooked from start to finish.
This is another fantastic addition to the series, but it can definitely be enjoyed as a standalone too. The pacing is spot on—fast, tense, and full of suspense. It’s very much a character-driven thriller, which makes everything feel more intense and personal.
One of my favourite things about Sam Holland’s writing is how she lets you think you’re figuring things out. You start putting the pieces together, feeling quite clever only to realise you’re still missing something crucial. And when it finally clicks, it fits perfectly, even when you didn’t expect it to. That twisty, clever plotting is so satisfying. The storyline is gripping, the tension never lets up, and the darker elements are handled brilliantly. It’s one of those books you just don’t want to put down. I’m a huge fan and honestly can’t get enough of her books. This one was no exception—I absolutely loved it and would highly recommend it to anyone who enjoys fast-paced, chilling thrillers.
This is another fantastic addition to the series, but it can definitely be enjoyed as a standalone too. The pacing is spot on—fast, tense, and full of suspense. It’s very much a character-driven thriller, which makes everything feel more intense and personal.
One of my favourite things about Sam Holland’s writing is how she lets you think you’re figuring things out. You start putting the pieces together, feeling quite clever only to realise you’re still missing something crucial. And when it finally clicks, it fits perfectly, even when you didn’t expect it to. That twisty, clever plotting is so satisfying. The storyline is gripping, the tension never lets up, and the darker elements are handled brilliantly. It’s one of those books you just don’t want to put down. I’m a huge fan and honestly can’t get enough of her books. This one was no exception—I absolutely loved it and would highly recommend it to anyone who enjoys fast-paced, chilling thrillers.
May 21, 2026
This is the first Sam Holland book I have read and it turned out to be a real cracker. With multiple suspects and countless twists, it kept me guessing throughout. I loved this story - DC Abby Fox, along with her boss and team, find themselves in a quagmire of murders, there are plenty of lies and misdirection, as well as a creepy, Victorian, psychiatric hospital setting.
The narrative follows DC Fox, recently returned from suspension, as she attempts to uncover the perpetrator behind a mysterious murder. Joe Sinclair, an inmate at Hollowpines psychiatric hospital has confessed, but he couldn’t possibly have carried out such a horrific stabbing as he’s been locked away, so how does he know so many of the horrifying details?
This novel brilliantly captures the tension affecting the team trying to find the killer, and I enjoyed the gentle weaving into their personal lives and backstories. The dialogue is punchy and the atmosphere throughout feels convincingly real, with the menacing psychiatric patients adding to the sinister ambience. Already suspenseful, the tension really turned up a notch in the final chapters.
This is a really good crime thriller with the right amount of chills and mystery. 100% recommended, I am now going to read Sam Holland’s back catalogue. 4.5 stars rounded up.
Thank you to NetGalley and Harper Collins UK, Harper Fiction for the opportunity to read an advanced copy.
The narrative follows DC Fox, recently returned from suspension, as she attempts to uncover the perpetrator behind a mysterious murder. Joe Sinclair, an inmate at Hollowpines psychiatric hospital has confessed, but he couldn’t possibly have carried out such a horrific stabbing as he’s been locked away, so how does he know so many of the horrifying details?
This novel brilliantly captures the tension affecting the team trying to find the killer, and I enjoyed the gentle weaving into their personal lives and backstories. The dialogue is punchy and the atmosphere throughout feels convincingly real, with the menacing psychiatric patients adding to the sinister ambience. Already suspenseful, the tension really turned up a notch in the final chapters.
This is a really good crime thriller with the right amount of chills and mystery. 100% recommended, I am now going to read Sam Holland’s back catalogue. 4.5 stars rounded up.
Thank you to NetGalley and Harper Collins UK, Harper Fiction for the opportunity to read an advanced copy.
March 13, 2026
Review of ‘The Killer in Room Five’ by Sam Holland, due to be published on 21 May 2026 by Harper Collins UK, HarperFiction - Hemlock Press.
Set in the Major Crimes Police Department, DC Abby Fox returns to work after a year long suspension following an IOPC investigation. Its her first day back and her new boss and former boyfriend Mac sends her to Hollowpines, a local psychiatric hospital to interview a patient, Joe, who tells a terrifying story of a murder that he couldn’t possibly have committed although he knows details that have not been shared as part of any press releases.
Keen to unlock what’s in Joe’s head, Abby hopes that Dr Devaney or Nurse Emma can help, but all interventions send Joe spiralling.
The storyline is a real tension builder leaving you feeling unsettled by the creepy and eerie happenings in the hospital, not least because one of the wings is hosting five women who each killed their victims in violent and sickening circumstances.
There is strong character development, the atmosphere and environment described in intricate detail. Throughout the story there are multiple possible suspects, red herrings, twists and real evil lurking around every corner.
It’s a gripping, tense and dark psychological thriller that is absolutely a recommended read.
Set in the Major Crimes Police Department, DC Abby Fox returns to work after a year long suspension following an IOPC investigation. Its her first day back and her new boss and former boyfriend Mac sends her to Hollowpines, a local psychiatric hospital to interview a patient, Joe, who tells a terrifying story of a murder that he couldn’t possibly have committed although he knows details that have not been shared as part of any press releases.
Keen to unlock what’s in Joe’s head, Abby hopes that Dr Devaney or Nurse Emma can help, but all interventions send Joe spiralling.
The storyline is a real tension builder leaving you feeling unsettled by the creepy and eerie happenings in the hospital, not least because one of the wings is hosting five women who each killed their victims in violent and sickening circumstances.
There is strong character development, the atmosphere and environment described in intricate detail. Throughout the story there are multiple possible suspects, red herrings, twists and real evil lurking around every corner.
It’s a gripping, tense and dark psychological thriller that is absolutely a recommended read.
Review of advance copy received from NetGalley
Thank you to NetGalley for the ARC of The Killer in Room Five by Sam Holland
This was a dark and gripping thriller that really leans into an unsettling and claustrophobic setting. Much of the story takes place inside a secure psychiatric unit, where a patient confesses to a murder he could not possibly have committed, setting up a tense and intriguing investigation.
I found the plot compelling, with that central mystery driving the story forward. As the case unfolds, it becomes clear there is far more going on beneath the surface, and the twists are handled in a way that keeps the tension building. It is undeniably dark in places, but that adds to the atmosphere rather than feeling excessive.
The characters are well drawn, particularly DC Abby Fox, who is returning to work under pressure and not entirely on steady ground. That vulnerability adds an extra layer to the investigation and makes her a more engaging lead. Joe, at the centre of the mystery, is equally effective, with an unsettling presence that lingers throughout.
The pacing is strong and the sense of unease is maintained from start to finish. While some elements felt familiar within the genre, the combination of setting, character and concept kept me fully invested.
A tense, atmospheric and unsettling read that will appeal to fans of darker crime fiction. A solid four stars.
This was a dark and gripping thriller that really leans into an unsettling and claustrophobic setting. Much of the story takes place inside a secure psychiatric unit, where a patient confesses to a murder he could not possibly have committed, setting up a tense and intriguing investigation.
I found the plot compelling, with that central mystery driving the story forward. As the case unfolds, it becomes clear there is far more going on beneath the surface, and the twists are handled in a way that keeps the tension building. It is undeniably dark in places, but that adds to the atmosphere rather than feeling excessive.
The characters are well drawn, particularly DC Abby Fox, who is returning to work under pressure and not entirely on steady ground. That vulnerability adds an extra layer to the investigation and makes her a more engaging lead. Joe, at the centre of the mystery, is equally effective, with an unsettling presence that lingers throughout.
The pacing is strong and the sense of unease is maintained from start to finish. While some elements felt familiar within the genre, the combination of setting, character and concept kept me fully invested.
A tense, atmospheric and unsettling read that will appeal to fans of darker crime fiction. A solid four stars.
Review of advance copy received from Netgalley
Another very good book in this series, and it works well as a standalone thriller.
The novel features DC Abby Fox, newly returned to duty after a year long suspension. Although cleared of any blame for an incident in which a colleague was stabbed, she anticipates trouble with her old team. And her ex is now her boss.
Abby is sent to chase what feels like a waste of time, an excuse to get her out of the office. Following a murder it is reported that a patient in a local mental hospital has information. He knows details of the crime not released, but has the perfect alibi. The murders continue, and Joe again knows facts that he shouldn't - but swears he has no idea why.
The case continues with few leads. Abby is stuck, but believes in Joe's innocence. Can she solve the murders and regain her reputation with her colleagues?
This is a well plotted, if a little overlong, novel. The characters are interesting and well developed and the crimes depicted, past and present, are gruesome. Overall, a gripping tale, although the clues to the killer are in there.
The novel features DC Abby Fox, newly returned to duty after a year long suspension. Although cleared of any blame for an incident in which a colleague was stabbed, she anticipates trouble with her old team. And her ex is now her boss.
Abby is sent to chase what feels like a waste of time, an excuse to get her out of the office. Following a murder it is reported that a patient in a local mental hospital has information. He knows details of the crime not released, but has the perfect alibi. The murders continue, and Joe again knows facts that he shouldn't - but swears he has no idea why.
The case continues with few leads. Abby is stuck, but believes in Joe's innocence. Can she solve the murders and regain her reputation with her colleagues?
This is a well plotted, if a little overlong, novel. The characters are interesting and well developed and the crimes depicted, past and present, are gruesome. Overall, a gripping tale, although the clues to the killer are in there.
Review of advance copy received from Netgalley
Absolutely bloody brilliant!! Part of me wanted to quickly binge the previous books as a reminder of the Major Crimes Unit, but the other part of me had to carry on to find out what had happened (not that it is needed as they work as standalones, I’m just an addict and any excuse for a re-read)
I loved the setting/characters of this book, especially the D wingers! I don’t think the mental image of Briget ‘walking’ will ever leave my brain, nor will Stevie’s puppet show.
There is so much going on in this book, but it doesn’t become too much or confusing, this intensity kept me hooked throughout, there is the usual violence, gore, twists and red herrings, but this is also mixed with characters who you cannot help find endearing and feel compassion for, especially Joe and some romance thrown in.
This is one of my favourite series and I would love to see more of Abby. I still need to get trophy copies of the books as these need to be firmly on the shelves of crime/thriller/violence fans.
Next book pleeeeaaaaassssseeeee! Untill then I need to find out what is going on in the world of Louisa Scarr.
I loved the setting/characters of this book, especially the D wingers! I don’t think the mental image of Briget ‘walking’ will ever leave my brain, nor will Stevie’s puppet show.
There is so much going on in this book, but it doesn’t become too much or confusing, this intensity kept me hooked throughout, there is the usual violence, gore, twists and red herrings, but this is also mixed with characters who you cannot help find endearing and feel compassion for, especially Joe and some romance thrown in.
This is one of my favourite series and I would love to see more of Abby. I still need to get trophy copies of the books as these need to be firmly on the shelves of crime/thriller/violence fans.
Next book pleeeeaaaaassssseeeee! Untill then I need to find out what is going on in the world of Louisa Scarr.
May 21, 2026
I am literally mind blown.
Sam Holland hooked me from The Echo Man, and has had my unwavering support ever since. I'm a big fan of crime thrillers, psychological thrillers, and twists that I didn't see coming. I'm also a big fan of shows like Ghost Adventures, which I watch religiously. With that said, this just might be my favorite book of hers yet, as it is set in a creepy AF old insane asylum. It has all the makings of my favorite things and it sure DELIVERS! I mean, the intro to the killers in ward D — SPOOKY!!!
It's a locked room thriller with so many twists, and everyone is a suspect. The research, as always, is impeccable. The characters are so vivid, and real, and vulnerable. I threw a wild guess out there and — to my surprise I guessed correctly! (this never happens to me, but perhaps I am getting better at finding Sam Holland's little eggs along the way!)
I will be shouting from the rooftops about this book for the foreseeable future. it's a MUST READ if you love thrillers. Trust me!
Sam Holland hooked me from The Echo Man, and has had my unwavering support ever since. I'm a big fan of crime thrillers, psychological thrillers, and twists that I didn't see coming. I'm also a big fan of shows like Ghost Adventures, which I watch religiously. With that said, this just might be my favorite book of hers yet, as it is set in a creepy AF old insane asylum. It has all the makings of my favorite things and it sure DELIVERS! I mean, the intro to the killers in ward D — SPOOKY!!!
It's a locked room thriller with so many twists, and everyone is a suspect. The research, as always, is impeccable. The characters are so vivid, and real, and vulnerable. I threw a wild guess out there and — to my surprise I guessed correctly! (this never happens to me, but perhaps I am getting better at finding Sam Holland's little eggs along the way!)
I will be shouting from the rooftops about this book for the foreseeable future. it's a MUST READ if you love thrillers. Trust me!
May 22, 2026
Rating: 4.5 stars.
I went into The Killer in Room Five by Sam Holland expecting something dark, annd I got intense, menacing, and unsettling. Set inside the eerie Hollow Pines Psychiatric Hospital, the atmosphere is instantly claustrophobic.
We follow DC Abby Fox, newly returned from suspension, as she’s drawn into a case where a patient called Joe is confessing to a brutal murder he couldn’t possibly have committed, yet somehow knows every horrific detail. The tension never lets up, Holland masterfully layers misdirection, reveals, and twists that kept me second guessing.
I loved the introduction of new characters Abby and her boss Mac (who also happens to be her ex), and the way the story explores manipulation, mental health, and the chilling dynamics inside the unit. It’s dark and graphic in places but that’s exactly what gives Holland’s thrillers their edge.
I’d recommend this to readers who love gritty, psychological crime. I’ve now read all of Sam Holland’s books, and this one absolutely holds its own.
I went into The Killer in Room Five by Sam Holland expecting something dark, annd I got intense, menacing, and unsettling. Set inside the eerie Hollow Pines Psychiatric Hospital, the atmosphere is instantly claustrophobic.
We follow DC Abby Fox, newly returned from suspension, as she’s drawn into a case where a patient called Joe is confessing to a brutal murder he couldn’t possibly have committed, yet somehow knows every horrific detail. The tension never lets up, Holland masterfully layers misdirection, reveals, and twists that kept me second guessing.
I loved the introduction of new characters Abby and her boss Mac (who also happens to be her ex), and the way the story explores manipulation, mental health, and the chilling dynamics inside the unit. It’s dark and graphic in places but that’s exactly what gives Holland’s thrillers their edge.
I’d recommend this to readers who love gritty, psychological crime. I’ve now read all of Sam Holland’s books, and this one absolutely holds its own.
Displaying 1 - 30 of 82 reviews