Sophie Hannah's seventh foray into the world of thrillers is cool, calculating and chillingA mother who insists her daughter has been substituted for another baby. A man who confesses to the murder of someone who's still alive. And now an insomniac who blurts out the words: "Kind, cruel, kind of cruel" under hypnosis, only to find herself arrested two hours later for the murder of a stranger.From her debut Little Face to her most recent bestseller Lasting Damage, Sophie Hannah, a successful poet for years before she moved into thrillers in 2006, has specialised in impossible scenarios and darkly twisted psyches, focusing on the psychological rather than the physical and delighting in presenting her readers with unguessable twists. Her seventh ...