Gripping psychological suspense from the number one bestselling author of Then She Was Gone, as what begins as an innocent crush develops into a dangerous infatuation. You're back home after four years working abroad with a brand new husband in tow. You're keen to find a place of your own. But for now you're living with your big brother, camped out in his spare bedroom. And then - quite unexpectedly - you meet the man next door. He's the head teacher of the local high school. He's twice your age. And he's devastatingly attractive. Soon you find you're watching him. All the time. But what you don't know is that someone is watching you. Or that what has started as an innocent crush is quickly turning into an obsession as dark as it is deadly. Family secrets, illicit passion and an unexplained murder lie at the heart of Lisa Jewell's gripping new novel.