Stephen Lewis, a successful writer of children's books, is confronted with the unthinkable: his only child, three-year-old Kate, is snatched from him in a supermarket. In one horrifying moment that replays itself over the years that follow, Stephen realizes his daughter is gone. With extraordinary tenderness and insight, Booker Prize-winning author Ian McEwan takes us into the dark territory of a marriage devastated by the loss of a child. Kate's absence sets Stephen and his wife, Julie, on diverging paths as they each struggle with a grief that only seems to intensify with the passage of time.