The 35-year-old ministry official Baron Leisenbohg had the stage career ten years ago as the cast of the "Queen of the Night", opera that promoted singer Klare Hell. Klare shows no gratitude however.
Lucie Rýdlová is found dead at a destroyed car after a night accident. The seat position shows that she cannot have been driving, and the dissection proves that she had died about four hours after the accident. It is for sure that a timely medical assistance could have saved her life. A pretty young tennis player Lucie lived at her grandmother, because her parents had been working abroad. Criminalists found out that the girl was going out with the interpreter Valenta (Eduard Cupák), who was twenty years older than her, divorced and a bit egoistic man.
A comedy about exchange of 12 apartments , which, its organizer, lawyer Radosta, rightly called Action Ball Lightning. To prepare, organize and execute the exchange of twelve apartments is a work worthy champions. Radosta, who was excellently played by Rudolf Hrušínský, solved all sudden difficulties and complications on the fly and with grace. To be sure that the on the D-day everything goes well he prepares a little rehearsal, which reveals many minor issues caused for example by wedding ordered to inappropriate term or hesitation of some participants. Last but not least a night exercise announced by drunk psychologist Knotků, creates a lot of confusion that nearly sabotaged the whole operation.
After returning home from the army, Vasek (Ladislav Potmesil) has married Bozka (Eva Trejtnarová) and the couple now live at her parents' house. Vasek is unhappy both with his work and with sharing the house with Bozka's parents. He and his friend Ruda (Oldrich Vlach) decide to take a temporary job in Ostrava for a year. Bozka is against this, but Vasek gets his way. Mining is hard work but Vasek gradually adapts to it. He gets homesick from time to time and wants to go back, but his pride always wins out. Once he really does travel back to see Bozka, but he doesn't find her at home.
An upholsterer who is preparing a rocket for takeoff accidentally jettisons himself into space and returns to Earth 500 years later with an alien companion who wishes to learn more about the human race.