London’s elite murder squad is back with Series 3. London’s best detectives take on its worst crimes in this slick mystery series from the creator of Suspects. The series begins and ends with the crimes of Sergeant Ian Durrant who is murdering, blackmailing and threatening his colleagues. The team also investigates the murder of a schoolboy, a woman’s discovery of the body of the man who gave evidence against her father’s killer and the body of a man stuffed into a suitcase.