Tom and Abby Stuart had everything: a perfect marriage, successful careers, and a beautiful twelve-year-old daughter, Caitlin. Then one day Caitlin vanished without a trace. For a while they grasped at every false hope and followed every empty lead, but the tragedy ended up changing their lives, overwhelming them with guilt and dread, and shattering their marriage.

Four years later, Caitlin is found alive but won’t discuss where she was or what happened. And when the police arrest a suspect connected to her disappearance, she refuses to testify. Taking matters into his own hands, Tom tries to uncover the truth—and finds that nothing that has happened yet can prepare him for what he is about to discover.