Jenny Shepherd is twelve years old and missing...Her teacher, Sarah Finch, knows better than most that the chances of finding her alive are diminishing with every day she is gone. As a little girl her older brother had gone out to play one day and never returned. The strain of never knowing what has happened to Charlie had ripped Sarah's family apart. Now in her early twenties, she is back living at home, trapped with a mother who drinks too much and keeps her brother's bedroom as a shrine to his memory. Then, horrifically, it is Sarah who finds Jenny's body, beaten and abandoned in the woods near her home. As she's drawn into the police investigation and the heart of a media storm, Sarah's presence arouses suspicion too. But it not just the police who are watching her...