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Paperback / ISBN-13: 9781472277374

Price: £9.99

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‘The very definition of a page-turner, it’s suburban noir at its finest’ HARRIET TYCE

Do you have any idea what the people you know are capable of? Bestselling author of All My Lies Are True, Dorothy Koomson, asks how well you can really know your neighbours. Fans of Lisa Jewell and Louise Candlish will rip through the pages of this addictive new thriller.

What if all your neighbours’ secrets landed in a diary on your doorstep?

What if the woman who gave it to you was murdered by one of the people in the diary?

What if the police asked if you knew anything?

Would you hand over the book of secrets?

Or … would you try to find out what everyone had done?

I Know What You’ve Done is the unputdownable thriller from the Queen of the Big Reveal.

Readers love Dorothy Koomson:

‘Koomson just gets better and better’ Woman & Home

‘An instantly involving psychological thriller’ Daily Telegraph

‘This is devastatingly good’ Heat

‘The suspense was on another level’ Black Girls Book Club

‘Written with verve and insight’ Stylist

‘We just couldn’t put it down’ Closer

‘The author plays a blinder’ Sun

‘The novel simmers with tension’ Daily Express

‘You’ll be gripped by this tense, twisty thriller’ Fabulous


A story about love, obsession, secrets and the effects of coercive control, this is devastatingly good
One of the best books I've read this year
The Sun
An immersive and complex story, handling distressing subjects with wisdom and courage. Characters you care deeply for, a twisty, shocking story, but also emotionally astute and very moving
Araminta Hall
The suspense and drama was on another level. No one does it like Dorothy
Black Girls Books Club
A pacy, addictive tale
Such a gripping and pacy thriller with a clever, twisty plot. . . I couldn't put it down
Claire Douglas
Dark and tightly plotted with a thrilling climax
S Magazine
Written with verve and insight
Dorothy Koomson has crafted the ultimate moral dilemma in this twisty and thought provoking mystery thriller set in Brighton
The very definition of a page-turner, it's suburban noir at its finest. A perfect holiday read
Harriet Tyce
Just like Desperate Housewives, but even darker and more devious
Woman & Home
Another delightfully twisty thriller from the 'queen of the big reveal'
A superb thriller from one of our favourite authors
A heart pounding thriller of pace and menace
The British Blacklist
A brilliant, super-pacy thriller that asks whether you really know what goes on behind closed doors
Fabulous Magazine
We loved this twisting tale of deception and we know you will, too
Take a Break
This clever thriller will keep you guessing until the end
[A] twisty thriller
The bestselling Queen of Big Reveals, never disappoints. . . Koomson hooks us from the very first page . . . This is another Koomson novel you won't be able to put down
From Queen of the Big Reveal, her 17th novel is the best yet . . . Snappy chapters each with different viewpoints, and choppy parts, filled with chills, twists, make this the pacey domestic noir read
My Weekly
This compelling thriller will have you asking how well you really know anyone, most of all your neighbours
a Brighton-set page-turner from the ever-reliable Dorothy Koomson
Intriguing and addictive slice of suburban noir which leaves readers guessing right through to the very last page. . . Packed with Koomson's trademark stunning twists and turns. . . you'll be racing to the end for a final reveal that ensures the Queen of the Big Reveal won't be losing her crown any time soon!
Lancashire Evening Post
This is a total page-turner. There are a lot of psychological thrillers out there but you'd be hard pressed to find many writers with the skill and talent of Dorothy Koomson. Go get it now, or pre-order the paperback. It's sensational
Steve Cavanagh