Philippe and the team work out the identity of the mysterious man Otto lunched with on Lake Albano, and discover he too is connected with the Nazi Bishop. They take a trip to the lake to meet the Priest who buried the man and he reveals an unbelievable family secret. A story of life, love and a curious death told by writer and barrister, Philippe Sands. A cold war mystery that reveals shadowy forces at work and consequences that stretch across generations. In this episode, Dame Sue Black is incorrectly described as a forensic pathologist. She is a forensic anthropologist. Producer: Gemma Newby Sound Design: Neil Churchill