Miss Nováková reports to Major Tuma (Karel Höger) from the police about the disappearance of her roommate, the model Zuzana. Shortly afterwards, a film director named Konrád (Otomar Krejca) asks Tuma to cooperate on a new cinéma-vérité film describing the story of Zuzana's disappearance.
A musical comedy about two indistinguishably similar siblings who love music, but each of them is completely different. Pavel Fořt is a professor of classical music at a pedagogical institute, his brother is a jazz musician and plays music in America. When the twin brother suddenly appears in Prague, they switch roles.
In the bleak autumn mountains of the Beskydy Mountains, a dramatic story set in the wartime November 1944 takes place. Seven refugees join forces with partisans, but during a joint sabotage operation - blowing up a bridge - they discover they have a traitor in their midst. Brought to the mountains by a variety of motivations, the men suspect each other while fighting for their lives with an advancing German detachment armed to the teeth...
