'Seriously brilliant' CJ Tudor
'Chilling and compulsive' Cara Hunter

"There's something I have to explain, my love," he says, taking your hand in his. "That wasn't a dream. It was an upload."

Abbie wakes in a hospital bed with no memory of how she got there. By her side is her husband Tim, the driven British founder of one of the world's most ground-breaking tech companies. They met when she joined his startup as artist-in-residence, their marriage a Silicon Valley fairy tale.

But as Abbie's memories return, she realises there's something missing from Tim's version of events. Because, five years ago, Abbie Cullen-Scott was pronounced dead . . .

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See what everyone is saying about JP Delaney, the hottest name in psychological thrillers:

'DAZZLING' Lee Child
'ADDICTIVE' Daily Express
'DEVASTATING' Daily Mail
'INGENIOUS' New York Times
'COMPULSIVE' Glamour Magazine
'ELEGANT' Peter James
'SEXY' Mail on Sunday
'ENTHRALLING' Woman and Home
'ORIGINAL' The Times
'RIVETING' Lisa Gardner
'CREEPY' Heat
'SATISFYING' Reader's Digest
'SUPERIOR' The Bookseller
'MORE THAN A MATCH FOR PAULA HAWKINS' Sunday Times