CAUTION! THIS BOOK IS ADDICTIVE...'A brilliant, brilliant novel. Incredbily gripping and scary!' Susanna Reid, Good Morning Britain'Had me gripped from start to finish' Jane Fallon'Creepy, paranoid and shocking' Alex Michaelides'Twisty, insightful and completely absorbing' Celia Walden'A brilliant page-turning thriller' Piers Morgan'Everyone needs to buy and read it' Rob Rinder____________How well do you know the people next door?You've moved to your dream home: a gorgeous ho