THE MUST-READ PSYCHOLOGICAL THRILLER FROM THE BESTSELLING AUTHOR OF GIRL UNKNOWN & YOUR CLOSEST FRIEND 'An intense drama. A clever novel in which everyone is hiding something, and keeps the reader guessing' Sunday TimesFRIEND. NEIGHBOUR. KILLER?Leah's new to Wyndham Park. Lonely and suffering from insomnia, she befriends her upstairs neighbour Anton.Anton has only recently returned to the street and is lonely too. He's been gone for nineteen years - but he hasn't told Leah the reason why.That nineteen years ago he was imprisoned for killing his wife. A wife who looked a bit like Leah . . . Was he wrongly convicted? Or is Leah befriending a killer intent on luring her closer and closer?'This slippery thriller conjures an intense sense of claustrophobia, delivering some deftly crafted surprises' Sunday Mirror'THRILLING' My Weekly Praise for Karen Perry 'Like Gone Girl . . . it's the most gripping thing I've read for ages' Evening Standard'A brilliant binge-read thriller with a real roller coaster of an ending' Heat'If you're a fan of menacing psychological thrillers that chill to the bone, this book is for you' Sunday Independent 'Genuinely surprising' Guardian