When Abby Henshaw is brutally attacked by two strangers who dump her at the side of a remote road, her first thought is for the safety of her baby, Beth. But what follows is a mother's worst nightmare: Beth is gone and Abby's world collapses around her. As the world-weary DI Michael Gardner investigates, he discovers lives built on secrets and betrayal. Gardner finds himself struggling to stay emotionally removed from the case, and from Abby herself. After the authorities finally shelve their investigation, Abby receives a message telling her where she can find her daughter. But how can she convince those around her that the girl really is Beth when they are the very people she knows the least?