The sensational new thriller from the author of the Richard & Judy bestseller Lie With Me. He saved your son's life. Does that mean you have to give him yours? It starts with a holiday. A three-year-old boy on a beach, and the hero who saves his life. But nothing is ever that simple. Tessa and Marcus know they owe Dave Jepsom more than they can ever repay. Yet even as he is walking from the sea with their son in his arms, there is something about him that makes them uneasy. He is not like other people that they know. Being with him makes them confront truths about themselves they would rather not see. The shock of that moment will change everything. And it's not how things start that matter. But how they end . . .