A LAST REPRIEVE. A FINAL JUDGEMENT. When two bodies are found brutally murdered on a building site in Battersea, Detective Sergeant Calil Drake is first on the scene. He sees an opportunity: to solve a high-profile case, and to repair his reputation after a botched undercover operation almost ended his promising career in the Violent Crimes Unit. Assigned to work with a specialist consultant, the enigmatic forensic psychologist Dr Rayhana Crane, and on the hunt for an elusive killer, Drake's investigations lead down the dark corridors of the past -- to their military service in Iraq and the destruction they witnessed there. With a community poised on the brink of violence and their lives on the line, Crane and Drake must work together to stop the killer before their vengeance is unleashed.