Missing persons investigator David Raker specialises in finding the lost. Whether dead or alive, he brings home the truth to the families left behind. But there's one person he's never been able to save. Colm Healy was one of the Met's best detectives - until the unsolved murders of a mother and her twin daughters consumed his career, his family and his life. For him, there can be no redemption without justice. Re-opening the case together, Raker soon learns the hard way how this puzzle breeds obsession. But the worst is yet to come because, at the end of this trail of tragedy and darkness, an elusive killer watches, waits and prepares to bury the truth forever.