A family completely disappear from their dinghy in the middle of a lake. A man detained in a casino holding cell vanishes. Missing persons investigator David Raker is an expert at solving missing persons puzzles - but these mysteries are unlike anything he's ever seen. He employs his long-time ally, ex-detective Colm Healy to help him. But the men are in danger. Because buried in the shadows of both cases is a deadly secret that was never meant to come out...