HE SEARCHES FOR THE DISAPPEARED.
Missing persons investigator David Raker specializes in finding the lost. Whether dead or alive, he brings the truth home to the families left behind. But there's one person he's never been able to save.

NOW THEY MUST TRY TO FIND A KILLER.
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. Agreeing to work with Healy, Raker soon learns the hard way how this puzzle breeds obsession.

IT WILL COST THEM EVERYTHING.
Because, as the case threatens to overwhelm them both, they discover the truth: this was never just a murder. It was something far worse . . .