In a quiet residential area in London a couple is discovered bound and imprisoned in their own home. Savagely battered and severely dehydrated the worst revelation is yet to come: their eight-year-old son has been abducted. But when the body is found and forensic evidence turns the case on its head revealing disturbing parallels to events in Detective Caffery-s own past Caffery realizes he-s dealing with much more sinister forces than he-d anticipated - and finds it increasingly difficult to maintain his professional distance. As the evidence mounts and Caffery struggles to hold his own life together the case hurtles toward a shocking conclusion.