The eccentric owner of a chateau, Lord Wilford, is fond of everything that is connected with criminal cases. His passion takes up so much time that even his secretary hardly has time to see her fiance. When mysterious letters arrive, announcing that a certain Mister X wants to steal a valuable statuette, the Lord is very enthusiastic. Apparently he himself will now experience a real criminal case! His secretary persuades him to hire a famous detective from London - none other than her fiance. But he is far from being a talented detective, and when a valuable pearl necklace disappears, the fiance falls under suspicion to be the thief.

Editor Eckernförde has come into the possession of an audiocassette that contains a recording of the last minutes of deceased politician Uwe Barschel. The circumstances of his untimely death have never been completely resolved - until now. Unfortunately, the editor's daughter Nina accidentally takes the tape with her to Munich, where she is about to visit her paralyzed Mom in a sanatorium. When this information reaches the CIA and the BND, both organizations compete to get hold of the tape. Meanwhile Erkan & Stefan, two loveable wannabe supercheckers from Munich, are assigned as bodyguards for Nina - of course, they are expected to mess up their job, so that the tape can be retrieved. But the two friends prove to be a bit more streetwise than CIA or BND ever expected.

This documentary details the life of Klaus Fuchs who was a spy for the Soviet Union while working on nuclear research in the United States and Great Britain. It also discusses the contributions of German scientists to the atomic bomb.