A girl has gone missing. You've never met her, but you're to blame. Food writer Estelle Forster has the perfect life. And with her first book on the way, it's about to get even better. When Estelle hears about Poppy O'Farrell's disappearance, she assumes the girl has simply run away. But Estelle's world crumbles when she's sent a photo of Poppy, along with a terrifying note: I'm watching you. I know everything about you. Estelle has no idea who's threatening her, or how she's connected to the missing teen, but she thinks the answers lie in the coastal town she once called home, and the past she hoped was long behind her. Estelle knows she must do everything to find Poppy. But how far will she go to hide the truth - that her perfect life was the perfect lie?