Neighbor Liar Killer

by Katie Reus

I heard my sister being murdered over the phone.

It was staged to look like a robbery gone wrong, but in her last moments, she was betrayed by someone she knew. Someone who had access to her home. Now her three girls are going to grow up without a mom, and I’ve lost the only person who’s ever been there for me.

And I’m going to find her killer.

Someone in my sister’s exclusive neighborhood killed her. The police are following their leads and I’m following mine. Unlike the detectives on her case, I don’t have to follow the rules. And the closer I get to discovering who the killer is, the more the danger grows, for me and everyone around me. If I don’t figure out who to trust, and fast, I’ll end up just like my sister.

Genres: Thriller, Suspense

283 pages, Kindle Edition

Expected publication April 28, 2026

About the author

Katie Reus® is the USA Today bestselling author of the Endgame trilogy, the MacArthur Family series and the Deadly Ops series. She fell in love with romance at a young age thanks to books she pilfered from her mom's stash. Years later she loves reading romance almost as much as she loves writing it. However, she didn't always know she wanted to be a writer. After changing majors many times, she finally graduated with a degree in psychology. Not long after that she discovered a new love. Writing. She now spends her days writing paranormal romance and sexy romantic suspense.

Reviews

[Lea Bookjoy · Rating 4 out of 5]

🇫🇷French & English reviews🇬🇧


*Cette chronique est basée sur un NetGalley ARC en échange d'un avis neutre et honnête*

📖Genre & Tropes📖 : Thriller x murder plot x grumpy heroine x grief x hints of romance at the end

ATTENTION : contrairement aux autres livres de cette auteure (romance à suspense et romance paranormale), ce livre est un thriller sans romance (à part une référence très légère à la fin)

Un thriller haletant et prenant que j’ai dévoré !

Je dois avouer que je n’avais pas du tout regarder le résumé ou le genre de ce livre avant de le lire parce que Katie Reus est une de mes auteures favorites et donc ça a été plutôt une surprise de découvrir un thriller avec une toute toute petite pointe de romance à la fin !

Malgré le fait que ce ne soit pas mon type de livres habituel, j’ai absolument DÉVORÉ ce livre ! L’intrigue autour du meurtre de la sœur de l’héroïne dans un quartier aisé genre Wisteria Lane était passionnante et j’ai adoré suivre les différentes étapes de l’enquête qui était bien tordue ! Les différents points de vue sont géniaux car on soupçonne rapidement tout le monde et je n’avais pas vu la fin venir !

Mais j’ai beaucoup aimé aussi les différents personnages et notamment l’héroïne qui est très humaine et imparfaite ce qui la rend d’autant plus intéressante (pilote qui travaille pour une agence de détectives sous couverture, ancienne alcoolique, …)

La fin avec le détective à Noël était parfaite <3

Bref, un thriller que j’ai dévoré en une matinée et que je recommande aux fans du genre ! J’espère que ce ne sera pas le dernier de cette auteure !

PS : to the publisher and Netgalley, thank you so much for the ARC =D

Pour plus de jolies chroniques 😘 : Mon Bujo tout en couleurs et en livres


⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐~⭐


*This review is based on a NetGalley ARC in exchange for a neutral and honest review*

WARNING : Unlike the author's other books (suspense romance and paranormal romance), this book is a thriller without romance (apart from a very slight reference at the end)

A gripping and suspenseful thriller that I devoured !

I must admit that I hadn't looked at the summary or the genre of this book before reading it because Katie Reus is one of my favorite authors, so it was quite a surprise to discover a thriller with just a tiny hint of romance at the end !

Despite the fact that it's not my usual type of book, I absolutely DEVOURED this book ! The plot surrounding the murder of the heroine's sister in a rich neighborhood like Wisteria Lane was captivating, and I loved following the different stages of the investigation, which was quite twisted ! The different points of view are brilliant because you quickly suspect everyone, and I didn't see the ending coming at all !

But I also really loved the different characters, especially the heroine, who is very human and flawed, which makes her all the more interesting (a pilot working for an undercover detective agency, a recovering alcoholic, etc.).

The end with the detective at Christmas was perfect <3

In short, a thriller that I devoured in one morning and that I recommend to fans of the genre ! I hope it won't be the last thriller book by this author !

PS : To the publisher and Netgalley, thank you so much for the ARC =D

For more pretty reviews 😘: My Bujo, all in color and books

[Leanne · Rating 4 out of 5]

Neighbour Liar Killer is the kind of thriller that grabs you by the collar from the first line and refuses to let go. It opens with a moment so chilling—hearing a loved one’s final breaths over the phone—that the emotional stakes are set instantly, and brutally. From there, the story becomes a taut, breath‑held descent into grief, suspicion, and the dangerous clarity that comes when you have nothing left to lose.

What makes this novel so compelling is the narrator’s voice: raw, determined, and threaded with a quiet ache that never overwhelms the pace. Her sister’s death isn’t just a mystery to solve; it’s a wound that keeps reopening as she steps into an exclusive neighbourhood full of curated smiles, guarded secrets, and people who know far more than they’re willing to admit. The tension builds beautifully as she follows her own leads—unbound by rules, unprotected by procedure—and the danger around her sharpens with every truth she uncovers.

The neighbourhood itself becomes a character: polished on the surface, rotten underneath. Every interaction feels loaded, every neighbour a potential threat, and the sense of isolation grows in a way that feels both intimate and unnerving. The author balances this psychological pressure with brisk plotting, letting revelations land at just the right moments to keep the pages turning.

By the time the story reaches its final stretch, the question isn’t just who killed her sister—it’s who can be trusted at all, and whether the truth will cost her the same price. The result is a gripping, emotionally charged thriller that blends heartbreak with relentless suspense, perfect for readers who love mysteries rooted in family bonds, buried betrayals, and the quiet, terrifying knowledge that danger can live right next door.

With thanks to Katie Reus, the publisher and netgalley for the ARC

[Reading Addict · Rating 5 out of 5]

If I could give Neighbor Liar Killer 10 stars I would because I loved it that much! This was a bit of a departure for Katie Reus because Neighbor Liar Killer is a straight up suspense/thriller and it kept me glued till the final page. Sloane Gala is a pilot to all that know her except for her inner circle. She's also an undercover investigator. Sadly she's about to begin the most important case of her life, solving her sister's murder. Her beloved sister Cara was murdered while having a conversation with Sloane and she won't stop at anything to bring her sister's killer to justice. Cara and her family live in an upscale, gated Washington state community. With that type of security, Sloane suspects that the killer is a neighbor and quite possibly a friend. She plans to investigate everyone while they only assume that they're talking to a grieving sister. The police are also investigating this homicide and lead detective Hector Garcia has been made privy to Slone's background but he doesn't quite approve of her methods. So who among these wealthy residents is responsible for destroying this family? Well, I'm not going to tell so you're definitely going to need to read Neighbor Liar Killer! It was told from multiple POVs and has all the twists, intrigue, action that I look forward to in a thriller.

[Pamela Lilley · Rating 5 out of 5]

I love a good suspense and this addictive murder mystery is up there with the best of them. The story literally starts with a conversation between Sloane and her sister, during which Sloane hears her sister get shot. Herein starts Sloane’s personal investigation into her murder. So many suspects, all it would seem with motives, many also with alibis, who can she trust? During her investigation she ‘assists’ the detective in charge, Hector Garcia, and vice versa. Between them, along with her work colleagues, they uncover a whole host of secrets, lies and even more dead bodies. Entertaining throughout, suspenseful throughout, and highly emotional at times. Sloane’s 3 young nieces are adorable, they really did pull at my heart strings. A romantic undercurrent between Garcia and Sloane adds a little bit of light relief in the latter chapters. An entertaining whodunnit. I received an advanced copy of this book. This is my honest review.

[Linda Quick · Rating 5 out of 5]

This book is fantastic! Once I started reading, I couldn't put it down. Almost from the very first page, I was totally engrossed in the story. The characters were flawed and felt real as they came to life on the page.

I loved the premise and the very question of the reasons for the homicide. The plot was complex, yet tightly crafted. The author is a master at her craft and is on my must read authors' list. This one is a must read for fans of the genre.

[Read All About It · Rating 4 out of 5]

Suspenseful adventure that keeps you guessing until the reveal. Sloane is on the phone with her sister when the unthinkable happens. This is one of those stories you just can’t put down. A large cast of characters keeps you on your toes. Just enough romantic interaction to set the stage for future books.

[Barbara Lack · Rating 5 out of 5]

I loved this book. It was heartbreaking watching the aftermath of Cara’s killing. I loved Sloane and her nieces. Sloane had a lot of personal growth during the book. It was an interesting neighborhood that Sloane’s sister lived in. There are a lot of twists and turns. I enjoyed following all the clues. I eagerly turned the pages to see what happened next.

[Karen Fisher · Rating 5 out of 5]

This is edge of your seat reading. Just when I thought I knew whodunit the author hit me with a broadside steering me in a new direction. Cara's daughters pulled on my heart strings. Hector was a bit of a surprise in the end. I loved every bit of it!

[Anita]

My thanks to the Publisher, and Author, for providing a complimentary digital Advanced Reader Copy (ARC) of this novel via NetGalley. This is my fair, honest and personal review. All opinions are mine alone and were not biased in any way.

[Woodatsi · Rating 4 out of 5]

RTC closer to release date.