Discover the No. 1 bestselling psychological thriller that will keep you hooked to the very end.

*AN INSTANT NO.1 BESTSELLER*
*WINNER Crime Novel of the Year, Irish Book Awards 2025*
*A READER FAVOURITE in Good Housekeeping's Good Books Spring Collection*

'Andrea Mara's best book yet. Absolutely outstanding!' Claire Douglas
'Tense, thrilling and relatable.' Sun

Your neighbours have secrets. How far will they go to keep them?

Susan sends her sister a gossipy message about their neighbour. But she accidentally posts it on the neighbourhood WhatsApp group instead.

It’s an innocent mistake that could happen to anyone, but rumours quickly spread and the backlash spirals. Soon that one wrong message leads to murder.

A local woman is found dead, but when Susan listens to the news report, she realises that the victim had the same address as her but in a different part of town. The killer may have got the wrong victim - they may be coming for her next.

*** Readers love It Should Have Been You! ***

'OMG what a book! I love Andrea Mara books but this one is the best I've read!' FIVE-STAR Reader Review

'Tense, gripping, everything you expect from Andrea. Loved it!' FIVE-STAR Reader Review

'The queen of the hook and twist so be prepared....and enjoy!' FIVE-STAR Reader Review

'Absolutely amazing! I loved, loved, loved every second!' FIVE-STAR Reader Review

'Wow! This book is superb!! I...inhaled it in record time!!' FIVE-STAR Reader Review

'The twists and turns in this story are unreal...buckle up and enjoy the ride!!!!' FIVE-STAR Reader Review

'This was an absolutely phenomenal read.' FIVE-STAR Reader Review

'Another 5 star book from Andrea Mara! I couldn’t turn the pages quick enough!' FIVE-STAR Reader Review

'So many twists and turns and shocks, it was brilliant!' FIVE-STAR Reader Review

'I’m officially an Andrea Mara fan and addict. For any suspense thriller fan this needs to be on your tbr.' FIVE-STAR Reader Review

Wow, It Should Have Been You blew me away. Ingenious plotting, brilliantly written, pacy and totally unpredictable, I devoured it over a weekend. This is Andrea Mara’s best book yet. Absolutely outstanding! * Claire Douglas *
Cleverly plotted and told from various points of view, It Should Have Been You shows how one mistake can have life-threatening consequences. Punchy writing, strong characterisation and short chapters propel it to a dramatic, satisfying finale. Highly recommended. * Sunday Independent *
I was hooked from first page to last as the twists got twistier and all of the characters squirmed while waiting for their darkest secrets to be revealed. May I suggest a new Irish blessing? May you never live in a neighbourhood created by Andrea Mara. Andrea is blessed with a gift for knowing our darkest fears and playing on them like a virtuoso violinist, and I am here for it. * Liz Nugent *
The convincing storyline maintains real dread in a world of everyday domestic detail. Very enjoyable. * Daily Mail *
An ingenious, heart-stopping premise that is also utterly relatable – the absolute definition of a page-turner. * T.M. Logan *
Andrea has a knack of taking our every day anxieties and turning them into full blown nightmares. She is one of the best psychological thriller writers out there, subtly weaving darkly absorbing stories with relatable characters who leap off the page. * John Marrs *
Andrea Mara’s It Should Have Been You is an up-all-night thriller that makes us consider the consequences of one small mistake. Compulsive, twisty, and utterly -page-turning. I devoured it. * Lucy Clarke *
(A) well-paced and exciting page-turner. * Irish Independent *
Tense, thrilling and relatable. * Sun *
A simple, ordinary mistake explodes into a suburban nightmare in this hugely compelling, one-sitting read packed full of thrilling moments and genuinely surprising twists. Andrea Mara is at the very top of her game. * Catherine Ryan Howard *

Andrea Mara is a number one Sunday Times, Irish Times and Kindle bestselling author, whose books have sold more than one million copies across all formats. The TV adaptation of her 2021 book, All Her Fault, aired in November 2025 to huge critical and audience acclaim, with Sarah Snook (Succession) playing the lead. It became the most-watched TV show in America during the first week of its release. Her most recent novel, It Should Have Been You, won Irish Crime Novel of the Year at the 2025 An Post Book Awards. It was a No.1 bestseller in Ireland for six weeks, and a Top Ten Sunday Times bestseller in the UK. Her book No One Saw a Thing was a Sunday Times number one bestseller and has sold over half a million copies. Andrea lives in Dublin with her husband and three children. You can find Andrea on Instagram @andreamaraauthor