Soviet engineer Kuznecov is coming to Prague as an expert on work with the tunneling shield in construction of the metro. He is returning after more than thirty years. In May 1945 as a young soldier in the Red Army he was seriously injured in the liberation of Prague and while recovering experienced a great love with a young teacher called Vera.
School supply teacher timid folk art Ales Brabec won first prize at a music festival and will therefore offer to work for the Prague little theater in the basement. Its director Soukup just needs a few songs for the upcoming musical, and so is willing to do everything to Alex to create the right atmosphere for composing.
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.
