On an early Sunday evening, people of the small town are reading lottery results that are hung on a board. Young man Karel Antos is annoyed that his lottery-ticket missed the main prize, a car, by only one number. Karel is going to the pub to drink away his bad luck with his friend Jirka Broz. The old accountant auditor Zelinka drops a wallet. Karel picks it up and before he gives it back he notices the winning lottery-ticket in it. Both young men accompany the old drunk man. Karel steals the ticket and exchanges it with his own. Next day, Zelinka is found dead. Investigators, Captain Tuma and the Lieutenant Líbal, soon discover that this is a murder case covered up as an accident.
| Directing | Vladimír Čech | Director |
| Camera | Josef Střecha | Director of Photography |
| Editing | Antonín Zelenka | Editor |
| Art | Karel Škvor | Production Design |
| Costume & Make-Up | Bohumil Sochor | Costume Design |
| Costume & Make-Up | Jiří Hurych | Makeup Artist |
| Sound | Emil Poledník | Sound |
| Directing | George Skalenakis | First Assistant Director |
| Directing | Irena Vachatová | Assistant Director |
| Directing | Věra Ticháčková | Assistant Director |
| Writing | Věroslav Trnka | Story |
| Writing | Miloš Velínský | Story |
| Writing | Miloš Velínský | Screenplay |
| Writing | Karel Cop | Screenplay |
| Crew | Václav Nývlt | Dramaturgy |
| Camera | Bedřich Baťka | Assistant Camera |
| Camera | Petr Ulrych | Assistant Camera |
| Art | Jan Petrů | Set Decoration |
| Art | Ladislav Winkelhöfer | Set Decoration |
| Costume & Make-Up | Ida Šmídková | Costumer |
| Costume & Make-Up | Rudolf Hammer | Makeup & Hair |
| Costume & Make-Up | Marie Džbánková | Makeup & Hair |
| Production | Zdeněk Oves | Production Manager |
| Production | Josef Císař | Unit Production Manager |
| Sound | Štěpán Lucký | Original Music Composer |
| Sound | Štěpán Koníček | Conductor |
| Writing | František Břetislav Kunc | Creative Producer |
| Production | Bohumil Šmída | Executive Producer |
