World War II is over and former German intelligence officer Captain Gregor Reinhardt has returned to Berlin, having been hired back onto Berlin’s police force. When a man is found slain, Reinhardt embarks on a gruesome investigation. It seems a serial killer is on the loose, and matters only escalate when it’s discovered that one of the victims was the brother of a Nazi scientist. Reinhardt realises that this investigation could cost him everything as he pursues a killer who believes that all wrongs must be avenged…