August 1939: Six young people pledge eternal loyalty and support to each other during the difficult years of the Nazi regime. Their friendship is severely tested, as betrayal was often punishable by death during that era. Years after the Second World War, Robert Lubisch discovers a photo of an attractive woman and a Wehrpass in the name of an unknown man in the estate of his father, an industrial magnate from the post-war period. What connection did his father have to these people? Robert begins his search for the truth and comes into contact with a journalist. She suspects there is a big story to uncover and is willing to risk Robert's father's reputation. But before she can reveal anything to Robert, she is brutally murdered. Robert is shocked. What old wounds has his investigation reopened?