Eighteen-year-old Emma has loving parents and a promising future ahead of her. So why, one morning, does she leave home without a trace? Her parents, Cath and Jim, are devastated. They have no idea why Emma left, where she is - or even whether she is still alive. A year later, Cath and Jim are still tormented by the unanswered questions Emma left behind, and clinging desperately to the hope of finding her. Meanwhile, tantalisingly close to home, Emma is also struggling with her new existence - and with the trauma that shattered her life. For all of them, reconciliation seems an impossible dream. Does the way forward lie in facing up to the secrets of the past - secrets that have been hidden for years? Secrets that have the power to heal them, or to destroy their family forever ...