This 1955 drama was based - like Istvan Szabo's masterful Colonel Redl (1985) - on the life story of Alfred Redl, a Ukrainian man who worked his way up through the hierarchy of the Austrian army in the early 20th century, while concealing his own homosexuality. In time, when others learn of his gayness, Redl is blackmailed by the Russians into taking counter-espionage maneuvers against the Austrians, and is ultimately forced to commit suicide.