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Shadows of Obsession

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When Sasha’s mother is murdered, justice becomes her obsession—and vengeance, her new religion. But to spill blood the right way, she needs a teacher. Enter Theodore billionaire, executioner, and the city’s most elusive predator. He kills the monsters no one mourns—rapists, traffickers, abusers—and he does it with pride.

Sasha shadows him from the dark, watching death dance at his fingertips. But Theo doesn't stay unaware for long. And when he turns his gaze on her, the hunter becomes the hunted.

Their twisted alliance begins with a blade and a shared hunger for justice. But as Theo sharpens Sasha into something lethal, their bond grows dangerous. Obsession burns. Lines blur. And when the sins of the city’s elite start to surface, it’s not just bodies they'll be burying—it’s secrets that were never meant to see the light.

In this game of predators, love is a weapon. Their shadows will haunt them all.

326 pages, Kindle Edition

Published August 29, 2025

23 people are currently reading
170 people want to read

About the author

Katie Night

4 books28 followers

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Displaying 1 - 30 of 48 reviews
Profile Image for high.lady.katie .
142 reviews1 follower
August 30, 2025
⭐️⭐️⭐️⭐️⭐️

I’m obsessed! Theo and Sasha are HOT🥵 This was a thrilling, dark & spicy read! Loved the writing style, I was hooked and wanting more! Dark romance readers do not miss this!


🔪 Tropes 🔪

🖤Billionaire
🖤Age Gap
🖤Stalkers to Lovers
🖤Stalkers
🖤Touch her and die
🖤Morally grey
🖤Serial killers
🖤Blood play
🖤Knife play
🖤Revenge
Profile Image for Cassie Murphy.
79 reviews9 followers
August 31, 2025
Omg I’m obsessed with this book. I completely devoured it!! The fmc and mmc are both obsessed with each other and unhinged (in the best ways we like our characters). They are the perfect book couple when it comes to dark romance and I loved it. This will have you hooked from the start. As always read your tw.

Some of the tropes are:
Stalker
Touch her and die
Age gap, Billionaire
Blood play, Knife play
let’s not forget Revenge
Profile Image for Christine.
121 reviews3 followers
August 20, 2025
Ok, if I had any doubts before, I can now say with certainty that I'm into dark romance.
This book pushed my boundaries, exploring vigilante justice, vengeance, trauma, and how far you'd really go for the people you love.
I couldn't put it down.
The depraved things that Sasha and Theo do to each other, for each other, made this a sinfully dark romance that kept me gripped until the end.
Profile Image for Madison.
475 reviews14 followers
August 27, 2025
This was a great story! Sasha and Theo were amazing characters, I love a murderous couple it’s so fun. The plot was fast paced, the writing was awesome and of course the spice was on point.

Thank you Katie for the ARC.
Profile Image for Kendra H.
66 reviews17 followers
August 29, 2025
ARC Review of Shadows of Obsession by Katie Night
⭐️⭐️⭐️⭐️/5

First things first—please read the trigger warnings before picking this up. This is an extremely dark romance, and Katie Night does not hold back. The pages are filled with blood play, knife play, serial-killer lovers, murder, stalking, trafficking, kidnapping, torture, body modification, tattooing, and strong BDSM themes. If any of those are too much for you, this won’t be the book for you.

That being said, if you’re a dark romance reader who craves intensity, obsession, and spice, this book has it all. It’s brutal, raw, and unapologetic in every way. Sasha (FMC) is vengeful and fearless, and Theo (MMC) matches her darkness perfectly. Together, they’re explosive—a twisted, dangerous pair who would raze the world just to keep each other safe. Their connection is unshakable, and what makes it so compelling is that their souls are equally dark and equally hungry. They aren’t looking for light—they thrive in the blood and shadows.

What I loved most is how Katie Night really leans into the “soulmates through chaos” dynamic. The chemistry is scorching, the spice is off the charts, and it has that delicious “if you touch them, you die” protective energy that makes dark romance fans (like me!) giddy. It’s the kind of book that pulls you into its twisted world and dares you to enjoy every bloody, obsessive second of it.

If you like your romance dark, your spice blazing hot, and your characters morally gray to the core, then I highly recommend Shadows of Obsession. It’s brutal, it’s passionate, and it’s exactly the kind of book that keeps you hooked from the first page to the very last.
Profile Image for Angel.
429 reviews19 followers
August 31, 2025
I absolutely loved this book! These two were made for each other In every way possible
Profile Image for Jamie Williams.
503 reviews9 followers
September 10, 2025
I devoured this book!! Theo and Sasha were amazing characters. Their chemistry together was scorching, the things they did so dark and depraved. Katie did an amazing job with this story. It drew me in immediately, and I was hooked till the very last page. Be sure to check the TW before reading, then enjoy!!
Profile Image for Jillian Marie.
6 reviews
September 24, 2025
The plot really worked for me—I loved that the main characters shared a similar sense of loss, which pulled them into darkness and made their connection feel raw and believable. As morally questionable as their choices were, it’s impossible not to root for them.

The obsession that fueled their story was intense, shifting from fixation to lust and eventually into love. (And yes, there were plenty of sex scenes—no complaints there!) What I especially enjoyed was how the darker, murderous undertones were woven in without losing the emotional thread.

For a shorter read, it still packed in strong character development and backstory while painting a vivid picture of obsession. I loved how the line blurred between morally wrong and this is hot, give me more.

This was my first read from this author, and I’d say it definitely delivered

I give it a 4 because I found at times I wanted even more character building than spice. That being said, the spice ate and left no crumbs, definitely 🌶🌶🌶🌶.5
Profile Image for Crystal Reads.
931 reviews55 followers
August 29, 2025
The way I devoured this book, I couldn’t put it down. I love everything Katie writes, but this is now my favorite book of hers and easily one of my top reads of the month and year. It’s unhinged, it’s dark, it’s delicious, and spicy!

Sasha discovers that her father is responsible for her mother’s death and she becomes consumed with the need to get vengeance. She needs someone to teach her how to be ruthless and how to unalive her victims. Then she witnesses Theo during one of his kills and she starts to stalk him. She wants to know everything and learn from him and she becomes obsessed with him. Theo is a successful businessman by day and a ruthless vigilante by night riding the world of only those who deserve it.

Theo becomes aware of his Shadow very early on and they play a cat and mouse game. They both stalk one another leading a bloody trail all over tile city. The banter and chemistry between the two is explosive and amazing! He would burn the entire world down and lay the bodies at her feet to prove it to her. These two are soul mates, two serial unalivers, morally grey characters meant for one another.
Profile Image for Rachael.
212 reviews3 followers
August 25, 2025
After Sasha's mother is murdered, Sasha is consumed by a desire for vengeance. She needs someone to teach her how to be ruthless; how to execute...

Sasha begins trailing a man named Theodore. He's a successful businessman by day, but a ruthless, merciless slayer by night. He rids the city of the worst of the worst with pride, and Sasha can't help but marvel at his work.

Theodore quickly becomes aware of Sasha's presence, and soon, the two find themselves in a twisted partnership. As Theodore shapes and molds Sasha into a lethal weapon, the bond formed between them becomes something dangerous. Obsession. Blurred lines. Secrets.

In this dark tale, love is a weapon.

I am always impressed by Katie Night's storytelling, and Shadows of Obsession is, hands down, one of the best macabre romance stories I've ever read! There is so much detail that I felt like I was actually in the scenes. The story is deliciously dark and twisted and had me hooked from the very first chapter. I liked that the stalker in this story is a woman. It's a fun change of pace from the stalker books I normally read. Theodore is terrifying, but in the best ways. I was weirdly drawn to him even though I totally shouldn't have been...

If you can handle dark, disturbing, and super spicy, Shadows of Obsession will be available very soon!
Profile Image for Cassandra Booth.
37 reviews
August 27, 2025
⭐️⭐️⭐️⭐️⭐️

Shadows of Obsession by Katie Night completely consumed me…in the best, darkest, most twisted way possible.
This books is a dark Halloween romance that delivers everything I crave:

🎧 A banger playlist

🩸Enough blood play to rival a horror film

🌶️ Off-the-chart spice

❤️‍🔥 Unmatched possessiveness from both the MMC & FMC

And yes… they’re stalking EACH OTHER.
Not one-sided. Not accidental. MUTUAL. OBSESSION.
I was hooked from page one.

The MMC calls her “Little Shadow” with that perfect blend of reverence and menace, while the FMC calls him “My Monster” and she means it Edith her whole chest. These two are feral, unhinged, and absolutely made for each other.

The chemistry? Explosive.
The vibes? Dark and Deadly.
The tropes? Mouthwatering.

If you love dark romance that doesn’t hold back… possessive characters, twisted love, top-tier spice, and a Halloween aesthetic that kills… this book is a must read.

Katie Night, I will be reading everything you write from now on!
Profile Image for Shere.
246 reviews11 followers
August 27, 2025
Move over Grayson, Theo Silvia is here. ( IFYKYK)

The way that I Loved this story!! Katie Night can write anything and I will read it. Her last two books I adored. This one I am Obsessed.

The amount of red flags Sasha and Theo both have was exactly what I like. I loved Sasha and how she was wanted to take care of business. I adore a boss babe. Theo’s unhinged possessiveness is a green flag for my book boyfriends.


If you like a light dark romance, some epic banter. A woman that stalks her man and they freaking tattoo each other. With some spice that was HOT. This baby is for for you 😘😘
Profile Image for Jennifer Hash.
97 reviews5 followers
August 28, 2025
Theo and Sasha are my new fav couple!! Their attraction and obsession for each other is unmatched!!

Sasha lost her mother and had found out it was her father and uncle who did it. She wants them to pay but she needs to be the one to exact revenge.

Enter Theo, a rich CEO, who Sasha believes might be her ticket to the knowledge she needs, how to exact her revenge.
Sasha stalks him, waiting to confirm if he can help her.

And Theo is onto Sasha, he dubs her his "little shadow." After some back and forth teasing (and bratting by Sasha), she is finally able to ask Theo to help teach her what she needs to know.

The two of them quickly become obsessed with each other and are determined to see justice done for Sasha. And if the two of them have a lot of fun in the meantime? So be it!
Profile Image for Jessica Baisley.
20 reviews1 follower
August 19, 2025
If you love super spicy dark romance books, this one is for you! Katie outdid herself with the spice level in this one. Theo and Sasha are the perfect murderous couple. I will be adding this book to my top reads of 2025!
Profile Image for Kate Greene.
7 reviews
September 8, 2025
ARC review…..this book is right up my alley with the dark, twisted romance. Trigger warnings? Sign me up!

Some of the storyline was a bit drawn out for my liking, but this was definitely an interesting read!
Profile Image for Wendy Marie (myrisingphoenixera.reads).
155 reviews75 followers
August 29, 2025
4⭐️
3.5🌶️
🔥Dark Unhinged Halloween Romance
🔥Billionaire
🔥Age Gap
🔥Morally Grey MMC
🔥Revenge Plot
🔥Stalker to Lovers
🔥Kidnapping
🔥Touch Her & ☠️
🔥Serial Unalivers
🔥Dual First Person POV

Unhinged doesn’t even begin to describe Shadows of Obsession. When Sasha learns that her father is responsible for her mother’s death she decides she’s going to get revenge. She begins to stalk Theo after witnessing him unalive someone so she can learn from him. Theo is the serial unaliver who takes out the ones who get away with their misdeeds. When he realizes he has a little shadow, a cat and mouse chase begins with both of them leaving a bloody trail. Theo will burn the world for her, leaving bodies in his wake. From their first official meeting to the end these two are fire and unhinged. Call it twin flames, soul mates, doesn’t matter what, these two were made for each other. Sasha and Theo get down and dirty…literally. The masqurade ball and game they play was hot! Katie Night writes top tier spice with a dark and bloody twist.

🚩Be sure to read the author’s note and content warnings before reading.

Thank you Katie Night for the ARC.

📚All thoughts and opinions are my own📚
🐦‍🔥Follow me on socials @myrisingphoenixera.reads 🐦‍🔥

A Few Favorite Quotes:
“My hand finds her bare thigh, sliding up slowly. “Tell me to stop.” I plead, knowing I shouldn’t be doing this. But her hand wraps around mine, dragging it higher, and she breathes, “No.” I am f*ked.”

“And I know, in that moment, we’ve ruined each other completely.”

“You were made from my darkest sins and my brightest dreams. You, little shadow, are everything I ever wanted.”

“And that’s when I feel it. The shift in the air. The weight of a storm about to break. The undeniable presence of Theodore f*king Silva. And beneath it, his rage—vast, merciless, and aimed like a blade.”

“He knows exactly how to ruin me while saying everything that makes me feel whole.”
Profile Image for Kate Pazanin.
239 reviews33 followers
August 31, 2025
Shadows of Obsession by Katie Knight
From the very first chapter, this book pulls you into a dark, dangerous world where passion and obsession blur the lines between love and survival. Katie Knight delivers a suspenseful romance full of secrets, tension, and that addictive push-and-pull between desire and danger.

The characters are magnetic—flawed, raw, and impossible not to root for. Every twist makes you question who can be trusted, and every page builds that slow-burn intensity until it explodes. If you love a romance laced with obsession, danger, and heat, this one will keep you up all night turning the pages.

A perfect mix of suspense, steam, and heart-racing drama—Katie Knight proves once again she knows how to write a romance that consumes you.
Profile Image for Vivien Richards.
1,357 reviews19 followers
September 5, 2025
This is an amazing story of lust, m*rder and revenge. Sasha needs revenge against her mother's m*rderer. Theo is a billionaire and a vigilante predator who rids the city of horrendous criminals who deserve their fate. Sasha starts following Theo and watches from the shadows but he senses her presence and draws her out. They begin to "work" together to rid the town of baddies. Their chemistry is so intense and fiery. From their vengeance for justice to their lust for each other, there is passion throughout. If you love dark romance this is definitely one you don't want to miss. I can't wait to read more from this author.
Profile Image for Hannah 💕.
112 reviews8 followers
August 27, 2025
Being in a slump when I started this book sucked. Because why did it take me 11 days to read this absolute masterpiece I will NEVER understand. I loved Theo and Sasha so much. They are the perfect spooky couple and Theo deserves all the love. He’s like a grizzly bear in a teddy bears form. I will probably never shut up about this man. And Sasha is so strong. Like you don’t even understand how strong this woman is until you read it. Please give this couple and this book a chance. Also the scarecrow? HAHAHAHA. Loved that.
Profile Image for Gabby.
38 reviews2 followers
September 2, 2025
Without spoiling anything about it! This was a perfect dark romance story!! I loved every single second of it and it got me hooked! I think that both Theo and Sasha were perfect for each other! They’re both stalkers who fall in love! It was pretty spicy but i loved every second of it! They really gave the trope of touch her/him and 💀 which i love because you barely really see both the FMC and MMC in that trope. it’s usually one or the other! I think the story was well written, it was pretty easy to read and very very hooking! If you love dark romances, i’d hop onto this train ASAP!!
Profile Image for Ella.
41 reviews1 follower
August 26, 2025
When the Stalker becomes the stalked.

The cat amd mouse game between Theo and Sasha had me kicking my feet in the air, I loved this book, the way that two dark souls who were obsessed with one another through it all sort after revenge and take down the elites who think money can buy them out of anything no matter how depraved.

If you love a dark romance book and a touch her and die mmc, this is for you.

Don't forget to check the trigger warnings.
Profile Image for Escape_withStephanie .
471 reviews12 followers
August 28, 2025
ARC REVIEW
This book was as intriguing as it was twisted, and it had me hooked from the start. Theo wasn’t just in love with Sasha—he was obsessed. And the wild part? Sasha was just as obsessed with him. Two killers falling for each other—what are the odds? One already renowned, the other eager to learn.
Taylor frustrated me as a character, but I’ll admit the smut scene with him at the beginning wasn’t bad at all. The book overall leaned heavily into the spice—definitely more smut than heartfelt moments—but it was undeniably hot.
Overall, this was a dark, smutty, and addictive read.

Profile Image for Scarlett Chase.
Author 4 books162 followers
August 30, 2025
Heat level: 4/5. When the serial killer gets stalked then turns the tables. They are both so obsessed with each other. Love it. He teaches her how to own her darkness and helps her find her crown. And helps her get her revenge. Such touch her and die vibes. * swoon * Editing needs to be tightened up since there were a handful inconsistencies that had me rereading a few times, but not so bad that it was super confusing.
Profile Image for Teena Fehling.
27 reviews2 followers
September 5, 2025
I was gifted a free e-copy of this ARC in exchange for my honest review.

Ok so I have read dark romance before and really enjoyed it. I did not, however, realize how broad the umbrella is lol. Shadows of Obsession is DARK dark romance. There were scenes that made me clutch my dang pearls, and I am NOT easily shocked. Overall, it was a fun ride for sure, but I’ve learned that there are some aspects of dark romance that might not be for me lmao. Katie did a great job with this and if you love dark romance, you will love this book.
Profile Image for Miranda.
120 reviews4 followers
October 29, 2025
If you’re in the mood for a dark, Halloween-themed romance that blends revenge, obsession, and emotional intensity—this one delivers! Sasha and Theo’s connection is raw and consuming, born from the shadows of their pasts and the secrets they can’t let go of.

Katie Night doesn’t shy away from exploring the darker sides of love and obsession, and she weaves that tension into every chapter. There’s stalking, danger, and heat—making it a quick but gripping read perfect for those who love morally gray characters who meet in their shared darkness.

A fast-paced, spicy read that will definitely appeal to fans of dark romance with a haunting twist.
Profile Image for Clarissa.
274 reviews12 followers
August 31, 2025
This is my first book by Katie and OMG!!!!!!


I LOVED IT SO SO SO MUCH!!!!


This true dark romance book had my little black heart in a chokehold!!!

Gah!! I fell in love with the way Katie wrote this book, it's epic, honestly!!

This will be spoiler free, but it has THE PLOT, THE SPICE, the EVERYTHING!!!

I can't say enough, really!

Phenomenal job, Katie!!
Profile Image for Rosiie’sCozyCorner (:.
11 reviews
September 4, 2025
⭐️⭐️⭐️⭐️

“You may have waited months for me, little shadow, but I have waited a lifetime for you.”

ABSOLUTELY LOVE LOVE LOVE !!

I’m not usually an insta love trope girlie, but Shadows of Obsession had me hooked from beginning to end. I love how Theo gives Sasha a safe place to be herself. They’re so unhinged for each other it’s addicting.

TROPES/GENRE:

♡ Stalker
♡ Age gap
♡ Blood play
♡ Obsession
♡ Kidnapping
♡ Dark romance
♡ Knife play
Profile Image for Christina.
383 reviews
August 23, 2025
I have no words for how amazing this book was. I love how perfect Theo and Sasha are for each other and how he loves every dark and depraved thing about her. This was definitely an intense and bloody book but it was sooo good. I highly recommend this book if you're looking for a dark romance with an obsessive MMC who will do anything for her.
Profile Image for Alexis Piele.
10 reviews18 followers
August 23, 2025
I’ve never ate a book up so fast! Sasha and Theo had me questioning my own morals with the level of spice this book had! I really can’t stop recommending it to my friends. The way Theo was soooo tender with Sasha. I really loved this book.
Profile Image for Heather Angeli.
213 reviews7 followers
August 29, 2025
A couple that slays together, stays together!
This book is heavy on triggers so check first! Sasha and Theo, stalkers of each other. One learning from the other.
Light banter but full of sass. Super spicy.
Sasha, out for vengeance after finding out the truth about her mom, will stop at nothing to take down those responsible.
Theo- determined to rid the world of evil, will stop at nothing to protect those he cares about!

I absolutely love an unhinged stalker romance and Katie Night delivered!
Displaying 1 - 30 of 48 reviews

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