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So My Ex-Boyfriend Is a Serial Killer
Love can be murder, especially when your ex is a serial killer. Don’t miss this spicy new romantic suspense by
New York Times
,
USA Today
, and Audible best-selling author Kylie Scott!
Nothing prepared Sidney Walsh for the social awkwardness of having unknowingly dated an infamous killer. She’s doing her best to move on after her ex got dragged off to jail. If only online amateur investigators, his creepy fans and a particularly belligerent cop would leave her alone. Her personal life might be quiet, what with having few friends and the neighbors wanting nothing to do with her. But at least it’s safe. That is until tattooed chef and all-round thirst trap, Noah, moves in next door.
Now Sidney is being asked on dates for the first time in forever, and feeling a dangerous mix of soul-deep connection and red-hot desire. But the darkest moments of her life come crashing back when her ex decides he has unfinished business...her. Will she and Noah make it out alive, and can their love withstand the nightmare of her past?
Nothing prepared Sidney Walsh for the social awkwardness of having unknowingly dated an infamous killer. She’s doing her best to move on after her ex got dragged off to jail. If only online amateur investigators, his creepy fans and a particularly belligerent cop would leave her alone. Her personal life might be quiet, what with having few friends and the neighbors wanting nothing to do with her. But at least it’s safe. That is until tattooed chef and all-round thirst trap, Noah, moves in next door.
Now Sidney is being asked on dates for the first time in forever, and feeling a dangerous mix of soul-deep connection and red-hot desire. But the darkest moments of her life come crashing back when her ex decides he has unfinished business...her. Will she and Noah make it out alive, and can their love withstand the nightmare of her past?
Audible Audio
First published June 4, 2025
141 people are currently reading
925 people want to read
About the author
Kylie Scott
61 books17k followersKylie is a New York Times, Wall Street Journal, and USA Today best-selling, Audie Award winning Romance author.
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Displaying 1 - 30 of 482 reviews
August 11, 2025
I don’t know what the focus of this story was. Was it a romcom? No. Thriller? No. Crime drama? No. Cosy mystery? No.
Things happened. The end.
Things happened. The end.
August 20, 2025
Boring with a side of dull 😑
You may be thinking, "Could a book about a serial killer really be boring?"
The answer is YES!!!
You may be thinking, "Could a book about a serial killer really be boring?"
The answer is YES!!!
August 16, 2025
4 stars.
Surprisingly good. There are def some parts that felt over dramatized and unrealistic in terms of how people were treating the heroine. However, I thought there was an eerie feeling of reality when it came to the podcasters and the true crime amateur detectives. I was a little skeptical of the whole thing in the beginning but the audiobook drew me in and I couldn’t stop listening until the end. This is an audible original so it’s free for anyone that is subscribed to Audible.
Safe
Surprisingly good. There are def some parts that felt over dramatized and unrealistic in terms of how people were treating the heroine. However, I thought there was an eerie feeling of reality when it came to the podcasters and the true crime amateur detectives. I was a little skeptical of the whole thing in the beginning but the audiobook drew me in and I couldn’t stop listening until the end. This is an audible original so it’s free for anyone that is subscribed to Audible.
Safe
October 14, 2025
Story 3.75 stars rounded to 4. Narration 5 stars.
I didn’t know this book existed until a couple of days ago. I found it on Audible for free and started listening the same day. And yes, I’m a fan of the author and have been for years. Unfortunately, I found I couldn’t give it a full 4 stars as there were a few things that didn’t sit right with me.
You never really think about the people in a serial killer’s life being left to receive all the hate after the killer has been caught or killed. This is the story of a woman(Sidney)who dated a guy when she was 19. He’s in jail for manslaughter and gets his kicks harassing her and causing the public to think she was the real killer. It’s been 10 years. She and her two friends have taken it upon themselves to try and find the bodies of other woman he killed-ones that the police have never thought he did. He used to take her on long hikes and that’s where they are searching. But now a major podcast show has come to town to try and blame it on her. Her new next door neighbor is Noah and he’s a good guy. I liked the main characters and her friends. I especially liked the little dog that adopts her during the story. Although, what kind a dog that adores his owner sleeps downstairs instead of up with his owner? I didn’t buy that part for a minute. The story was good but not as deep as I feel it should have been while dealing with a serial killer. It wasn’t funny or anything like that. People get killed as well. Sidney is scared and upset but not as upset as most would be during some of the worse scenes. She’s more into falling in love with her neighbor. I mean, it is a romantic suspense story, I just thought it should be more real. If that makes sense. I’d be running for the hills but she stays. I guess we wouldn’t have a story if she didn’t. It was pretty underwhelming and maybe a twist or something would have helped. Having said all that, I did enjoy the listen and don’t feel like I wasted my time at all. And after all was said and done, I really enjoyed the romance. Recommended to adult romance readers.
I didn’t know this book existed until a couple of days ago. I found it on Audible for free and started listening the same day. And yes, I’m a fan of the author and have been for years. Unfortunately, I found I couldn’t give it a full 4 stars as there were a few things that didn’t sit right with me.
You never really think about the people in a serial killer’s life being left to receive all the hate after the killer has been caught or killed. This is the story of a woman(Sidney)who dated a guy when she was 19. He’s in jail for manslaughter and gets his kicks harassing her and causing the public to think she was the real killer. It’s been 10 years. She and her two friends have taken it upon themselves to try and find the bodies of other woman he killed-ones that the police have never thought he did. He used to take her on long hikes and that’s where they are searching. But now a major podcast show has come to town to try and blame it on her. Her new next door neighbor is Noah and he’s a good guy. I liked the main characters and her friends. I especially liked the little dog that adopts her during the story. Although, what kind a dog that adores his owner sleeps downstairs instead of up with his owner? I didn’t buy that part for a minute. The story was good but not as deep as I feel it should have been while dealing with a serial killer. It wasn’t funny or anything like that. People get killed as well. Sidney is scared and upset but not as upset as most would be during some of the worse scenes. She’s more into falling in love with her neighbor. I mean, it is a romantic suspense story, I just thought it should be more real. If that makes sense. I’d be running for the hills but she stays. I guess we wouldn’t have a story if she didn’t. It was pretty underwhelming and maybe a twist or something would have helped. Having said all that, I did enjoy the listen and don’t feel like I wasted my time at all. And after all was said and done, I really enjoyed the romance. Recommended to adult romance readers.
This entire review has been hidden because of spoilers.
August 15, 2025
Ughhhhhhhhhh. This book was infuriating. Interesting premise. Slow start. Clunky delivery. It was essentially a woman obsessing over her trauma for a decade, making really poor decisions, and interfering in police investigations for the whole book — and she brings her new boyfriend along. What a train wreck.
September 16, 2025
3.5/5 ⭐️
Enjoyed this true crime style thriller with a side of romance.
Enjoyed this true crime style thriller with a side of romance.
October 19, 2025
Healing in spite of traumatic experiences & relationships. I loved the therapy & psychology speak! Insider true crime vibes. This was a fun read! I really enjoyed it! Very light on the darker elements.
August 13, 2025
Everything was fine but Noah’s investment didn’t seem realistic. I like my romance more central and neither the crime nor the romance seemed good enough to outshine the other. But the point of view from the survivor and survivors guilt was the most interesting part of the story so I gave it three stars.
August 20, 2025
So I was listening to a different Kylie Scott audiobook, but this one came out on audio before it will be available as a paperback or e-book, so I jumped on the chance. It was also a free listen on Audible too. You probably know I don’t read a ton of romantic suspense books, but Kylie Scott’s books usually have the humor and characters that I enjoy just about any type of story she writes. And this one was no exception to that trend for me.
While my brain kept thinking of all the twists that could be coming, the new guy wasn’t who he said he was, her true crime loving friends “helping” her figure out where her ex might have buried other bodies maybe were in it for more. I did kind of see one twist coming when something about the phone being face down during a conversation was mentioned. But other than that, no twists for the people that were friends and new love were to be found. Sorry to spoil that for you!
However, the ex was definitely a creep and he played into pretty much all the drama we got. Between threatening her with letters and phone calls, his latest girlfriend coming and stalking Sidney, and even those people out there who believed he was innocent and that Sidney was actually the killer. There was a lot of tense moments and suspense for sure with all of that. There was a cute dog that showed up and became her pet. Her new guy, Noah, was a winner for sure, even if he did have a totally understandable moment at first of stepping back when he found out about her history.
This was a quick listen at only about 6 hours, and I definitely recommend it!
Review first posted on Lisa Loves Literature.
While my brain kept thinking of all the twists that could be coming, the new guy wasn’t who he said he was, her true crime loving friends “helping” her figure out where her ex might have buried other bodies maybe were in it for more. I did kind of see one twist coming when something about the phone being face down during a conversation was mentioned. But other than that, no twists for the people that were friends and new love were to be found. Sorry to spoil that for you!
However, the ex was definitely a creep and he played into pretty much all the drama we got. Between threatening her with letters and phone calls, his latest girlfriend coming and stalking Sidney, and even those people out there who believed he was innocent and that Sidney was actually the killer. There was a lot of tense moments and suspense for sure with all of that. There was a cute dog that showed up and became her pet. Her new guy, Noah, was a winner for sure, even if he did have a totally understandable moment at first of stepping back when he found out about her history.
This was a quick listen at only about 6 hours, and I definitely recommend it!
Review first posted on Lisa Loves Literature.
September 3, 2025
This one was okay. I kept thinking there was gonna be some big twist and she was gonna be actually guilty of something but no. Would have been more interesting. Liked the love story though.
November 6, 2025
Somehow….nothing….really….happened……….
August 7, 2025
So My Ex-Boyfriend Is a Serial Killer has all the fun, tension, and fast pacing you'd expect from a Kylie Scott book. It’s a mix of suspense and romance that’s super easy to get into and hard to put down.
I really appreciated the use of gender-neutral language here and there. It wasn’t overdone, just a nice touch that made the story feel modern and inclusive.
Noah was a bit of a surprise. If you’ve read Kylie Scott before, you’ll know she mostly writes rock stars, tattooists, and actors. The bold, larger-than-life types. But Noah’s different. He’s not flashy or sarcastic or full of ego. He’s calm, kind, emotionally mature, and knows how to communicate. It was a nice change of pace.
Sidney also isn’t the typical snarky, fast-talking heroine you might expect. She’s been through a lot, and even though she’s more reserved, she still feels strong and capable. Her trauma doesn’t define her, and she comes across as a fully fleshed-out character with depth.
I love how the book leans into the current trend of serial killer romances, but with a smart twist. Lately, a lot of these stories make the killer the love interest and tend to be on the darker side. This one flips the idea completely. The killer’s part of the backstory, but the real focus is on what happens after. The trauma, the fear, the rebuilding, all while being a pariah. You still get the suspense and edge of the genre, but with a lighthearted touch. It feels fresh and a bit more grounded.
I think it reads better than it listens. The audiobook was okay, but the narrator’s tone didn’t always match the mood of the scene, which threw me off a little.
Overall, this was a really enjoyable read. It’s different from Kylie Scott’s usual vibe, but in a good way. If you like romantic suspense with a twist and characters who feel real, definitely check this one out.
I really appreciated the use of gender-neutral language here and there. It wasn’t overdone, just a nice touch that made the story feel modern and inclusive.
Noah was a bit of a surprise. If you’ve read Kylie Scott before, you’ll know she mostly writes rock stars, tattooists, and actors. The bold, larger-than-life types. But Noah’s different. He’s not flashy or sarcastic or full of ego. He’s calm, kind, emotionally mature, and knows how to communicate. It was a nice change of pace.
Sidney also isn’t the typical snarky, fast-talking heroine you might expect. She’s been through a lot, and even though she’s more reserved, she still feels strong and capable. Her trauma doesn’t define her, and she comes across as a fully fleshed-out character with depth.
I love how the book leans into the current trend of serial killer romances, but with a smart twist. Lately, a lot of these stories make the killer the love interest and tend to be on the darker side. This one flips the idea completely. The killer’s part of the backstory, but the real focus is on what happens after. The trauma, the fear, the rebuilding, all while being a pariah. You still get the suspense and edge of the genre, but with a lighthearted touch. It feels fresh and a bit more grounded.
I think it reads better than it listens. The audiobook was okay, but the narrator’s tone didn’t always match the mood of the scene, which threw me off a little.
Overall, this was a really enjoyable read. It’s different from Kylie Scott’s usual vibe, but in a good way. If you like romantic suspense with a twist and characters who feel real, definitely check this one out.
October 23, 2025
Kylie Scott is my favorite author! Whether it's rockstar romance, found families in a gritty dive bar, or even post-apocalyptic love stories, she never fails to deliver. No matter the setting or genre, her stories are always grounded in rich, relatable characters that stay with you long after the last page. A quick little must-read, So My Ex-Boyfriend is a Serial Killer has strong characters with a dark past and a unique story with a slow-burn romance. Definitely this is one to add to your queue! To add, after a second read, I liked it even more now that I am less apprehensive of the characters. When you read a book about someone who survived a serial killer, you find yourself not trusting the characters and anticipate a twist. This book was refreshing.
September 10, 2025
Noah was the GREENEST FLAG AHHHHHHHHHHHHH
I honestly loved this so much it was so fun
I honestly loved this so much it was so fun
October 18, 2025
This is technically 3.5 ⭐️ but GR doesn’t have a half star option so. This one has an interesting concept. I really like that there is a happy ending at the end. However I don’t know if this is me reading too much into it but the main character’s first name being Sidney (same spelling and name as the main character from the Scream franchise) seems a little cliche to me. Overall I enjoyed this book but wish the character had a name that didn’t already directly correlate to a slasher film final girl already.
November 14, 2025
2,5 stars.
November 8, 2025
Interesting premise, but didn't deliver much in terms of thrills.
November 13, 2025
I was given an ARC copy of this book in exchange for an honest review.
It is with a heavy heart that I have to say I didn't enjoy this one at all. I don't know what this book is supposed to be about. Is it a romance? Because if it is, it was so underdeveloped. Is it a mystery? If so, that was lacklustre. I know Kylie Scott can write a better story than this. This one felt like a book written in a rush, with no care for its storytelling or its intention. I am very disappointed.
But maybe that's my problem? I dunno.
It is with a heavy heart that I have to say I didn't enjoy this one at all. I don't know what this book is supposed to be about. Is it a romance? Because if it is, it was so underdeveloped. Is it a mystery? If so, that was lacklustre. I know Kylie Scott can write a better story than this. This one felt like a book written in a rush, with no care for its storytelling or its intention. I am very disappointed.
But maybe that's my problem? I dunno.
October 2, 2025
Not a single twist! I really thought something other than what we already knew would be revealed at the end
August 31, 2025
I really like the way Kylie Scott’s characters have open communication and don’t break up for stupid reasons, and this book has those elements. Unfortunately, the plot was the weak spot here. I love the premise, but the FMC makes the worst possible decision at every point.
She puts up with being the town pariah and literally accused of multiple murders for TEN YEARS for what? She didn’t want to tell her side of the story but got butthurt when people listened to her ex’s bs side of the story. At one point she thinks it would be nice to talk to other people who survived trauma but then is all like, “ooh, I suck at making friends!” WHAT? Support groups aren’t casual social events! And she has multiple close friends!
I found it odd and unbelievable that there was enough evidence to convict him of killing one of his victims, but somehow it was considered manslaughter and seemingly most of the world believes he was somehow influenced into killing by a 19-year-old girl? And what about being caught in the act of attempted murder of that girl makes them think she had power over him? It just doesn’t make sense.
Overall not bad but the plot holes were distracting.
She puts up with being the town pariah and literally accused of multiple murders for TEN YEARS for what? She didn’t want to tell her side of the story but got butthurt when people listened to her ex’s bs side of the story. At one point she thinks it would be nice to talk to other people who survived trauma but then is all like, “ooh, I suck at making friends!” WHAT? Support groups aren’t casual social events! And she has multiple close friends!
I found it odd and unbelievable that there was enough evidence to convict him of killing one of his victims, but somehow it was considered manslaughter and seemingly most of the world believes he was somehow influenced into killing by a 19-year-old girl? And what about being caught in the act of attempted murder of that girl makes them think she had power over him? It just doesn’t make sense.
Overall not bad but the plot holes were distracting.
October 15, 2025
Sidney Walsh couldn’t wait for life to quiet down after her now serial Unaliver ex went to jail 10 years ago but some people just can’t forget. When her new neighbor Noah takes interest she is cautious but also thinks that a normal guy finally is interested and maybe she can move on…but her ex isn’t ready to let her go just yet. This is a slow telling story of a woman trying to move on from her past. I didn’t know what to expect going in but I was hoping for more suspense maybe with this title however it does pick up close to the end. Noah is sweet and tries to help Sidney find the evidence to keep her ex behind bars. Will
It be enough? Told in first person and Sidney’s POV.
It be enough? Told in first person and Sidney’s POV.
October 30, 2025
I enjoyed this a lot more than I thought I would. The story follows a girl who has a serial killer ex boyfriend…are you surprised? It wasn’t a long book, but it was still easy to get invested in the characters and plot. This author is new to me but the characters were fantastic and the story had a great pace. Obviously there were some parts that felt a little dramatic, but most books are. I think the podcasters and canceling of people was pretty accurate. There was definitely room for her to do more with this, but I still enjoyed it. Can’t wait to read more from this author!
November 16, 2025
Looking for love!
I have to say this book is more than a five star read for me! Kylie Scott knows how to write a book you can't put down, keeping you entertained from start to finish! Sydney hides herself away from the world, after her ex turned out to be a serial killer! She works at a job that allows her to stay home and in her spare time, she tried to remember where he took her when they went hiking so that she can find the bodies of his victims. When Noah moves in next door, her hermit life starts to change and she allows herself to start to live again. Can she have a normal life or will her ex continue to ruin it? The chemistry between Sydney and Noah is hot and the way he treats her is beautiful. Add in the suspense of a stalker plus her ex and you've a read that ticks all boxes, including the weird ones!
I have to say this book is more than a five star read for me! Kylie Scott knows how to write a book you can't put down, keeping you entertained from start to finish! Sydney hides herself away from the world, after her ex turned out to be a serial killer! She works at a job that allows her to stay home and in her spare time, she tried to remember where he took her when they went hiking so that she can find the bodies of his victims. When Noah moves in next door, her hermit life starts to change and she allows herself to start to live again. Can she have a normal life or will her ex continue to ruin it? The chemistry between Sydney and Noah is hot and the way he treats her is beautiful. Add in the suspense of a stalker plus her ex and you've a read that ticks all boxes, including the weird ones!
October 31, 2025
This was fine.. I wish it was a little more focused on either the true crime or the romance because the mix of them lost something for me. I really wanted to love it and it just fell a little flat, but it was a really quick read.
November 19, 2025
4 ⭐️'s
So, this was an interesting spin on having a boyfriend as a serial killer. In my mind, I had a different scenario but this is pretty much exactly what the title says.
I felt bad for Sidney. She went through a lot but thankfully Noah (and Auggie) shows up. I loved how protective Noah was and I loved everything Sidney finally experienced. And Auggie...well, he was perfect!
That ending was pretty intense but the wrap up was sweet (thank goodness).
So, this was an interesting spin on having a boyfriend as a serial killer. In my mind, I had a different scenario but this is pretty much exactly what the title says.
I felt bad for Sidney. She went through a lot but thankfully Noah (and Auggie) shows up. I loved how protective Noah was and I loved everything Sidney finally experienced. And Auggie...well, he was perfect!
That ending was pretty intense but the wrap up was sweet (thank goodness).
November 17, 2025
1.5 stars
I feel bad giving this such a low rating but I genuinely hated it. It was boring and I feel like nothing happened. The FMC was so insufferable and the plot was all over the place. Sadly just not for me.
I feel bad giving this such a low rating but I genuinely hated it. It was boring and I feel like nothing happened. The FMC was so insufferable and the plot was all over the place. Sadly just not for me.
October 21, 2025
I the title So My Ex-Boyfriend is a serial killer was a quirky title. this book was more of a thriller romance than a rom com but I enjoyed every second. Sidney's story felt realistic for someone who survived something terrible.
September 17, 2025
This was a fun and easy audiobook but it was a little bland. I thought it would be much more crime/thriller focused but that really only a tiny portion of the story, it was much more focused in the FMC dealing with her trauma and shitty townsfolk.
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November 20, 2025I'm not sure what to say.
It's well written though pinpointing the genre is ...... hmmm...
There is a romance. The Hero is divorced and the heroine has had issues with privacy and people so hasn't really dated since the ex.
It's well written though pinpointing the genre is ...... hmmm...
There is a romance. The Hero is divorced and the heroine has had issues with privacy and people so hasn't really dated since the ex.
This entire review has been hidden because of spoilers.
August 16, 2025
Honestly, this book gave me everything my little black soul loves.
I thought based on the title that it would be more of a funny rom com but it wasn’t, it was suspenseful, fast paced, there was some romance/spice(like two spice scenes but they were well placed), true crime.
True crime and romance books are my favorite things so when they’re bashed together it’s really hard for me to not like it.
This book took a LOT of inspo from real life true crime though. I was getting Ted Bundy vibes and the Netflix documentary from a few years back, there were a few things that made me think of the West Memphis Three, the social media aspects/podcasters/arm chair detectives reminded me of the Gabby Petito case and then various other serial killers/true crime cases I’ve seen over the years.
Kylie Scott loves to add drama/injury in the last like 3 chapters of her books I’m learning and it didn’t disappoint in this book. I was SO happy with how Sydney got her revenge!!!
Also Noah was so fucking cute and never left her side.
I thought based on the title that it would be more of a funny rom com but it wasn’t, it was suspenseful, fast paced, there was some romance/spice(like two spice scenes but they were well placed), true crime.
True crime and romance books are my favorite things so when they’re bashed together it’s really hard for me to not like it.
This book took a LOT of inspo from real life true crime though. I was getting Ted Bundy vibes and the Netflix documentary from a few years back, there were a few things that made me think of the West Memphis Three, the social media aspects/podcasters/arm chair detectives reminded me of the Gabby Petito case and then various other serial killers/true crime cases I’ve seen over the years.
Kylie Scott loves to add drama/injury in the last like 3 chapters of her books I’m learning and it didn’t disappoint in this book. I was SO happy with how Sydney got her revenge!!!
Also Noah was so fucking cute and never left her side.
Displaying 1 - 30 of 482 reviews