A missing private investigator is found locked in a car hidden deep in the woods. Worse still -- both for his family and the police -- the body was in an area that had already been searched 10 years ago. Detective Inspector Siobhan Clarke is part of a new inquiry, combing through the mistakes of the original case. There were always suspicions over how the investigation was handled, and now -- after a decade without answers -- it's time for the truth. Every officer involved must be questioned, and it seems everyone on the case has something to hide -- and everything to lose. None more so than Detective John Rebus.