It should have been just a mid-life fling, Neve Connolly's escape from 20 years of routine marriage to her overworked husband, and from her increasingly distant children. But when Neve pays a morning-after visit to her lover, Saul, and finds him murdered, she frantically scrubs every trace of her existence from the room. As Neve tries to return to normal, shaken but intact, she can't get out of her head the one tormenting question: what was she forgetting? Now Detective Chief Inspector Alastair Hitching is compiling evidence, and he isn't the only one watching Neve—so is a determined killer, who's about to make the next terrifying move.