One night in 1950 a passenger train runs over a man, who turns out to be the veteran train engineer Władysław Orzechowski, knows for his old ways and stern demeanor. As the inquiry panel tries to deduce why would a man like Orzechowski jump in front of a moving train several of the people involved in the case are interrogated, each telling their own version of the story. Can the panel arrive at the truth in a world where workers unite, inferior coal is a badge of honor, and the old order is suspect?
| Directing | Andrzej Munk | Director |
| Writing | Andrzej Munk | Writer |
| Writing | Jerzy Stefan Stawiński | Screenplay |
| Writing | Jerzy Stefan Stawiński | Story |
| Camera | Romuald Kropat | Director of Photography |
| Editing | Jadwiga Zajiček | Editor |
| Costume & Make-Up | Halina Dobrowolska | Costume Design |
| Sound | Józef Bartczak | Sound |
| Costume & Make-Up | Zofia Macinska | Makeup Designer |
| Costume & Make-Up | Jadwiga Swiętosławska | Makeup Designer |
| Production | Wilhelm Hollender | Production Manager |
| Art | Roman Mann | Production Design |
| Directing | Jakub Goldberg | Assistant Director |
| Directing | Paweł Komorowski | Assistant Director |
| Directing | Ryszard Pluciński | Assistant Director |
| Camera | Jan Laskowski | Camera Operator |
| Editing | Mirosława Garlicka | Co-Editor |
| Camera | Czesław Grabowski | Assistant Camera |
| Lighting | Julian Glowacki | Lighting Technician |
| Art | Jarosław Świtoniak | Assistant Production Design |
| Art | Franciszek Garczyński | Construction Foreman |
| Sound | Jerzy Bolesławski | Sound Assistant |
| Sound | T. Bielecki | Sound Assistant |
| Camera | Baruch Łazarow | Still Photographer |
| Production | Zygmunt Wójcik | Unit Manager |
| Production | Michał Sosiński | Unit Manager |
| Production | Romuald Hajnberg | Unit Manager |
| Directing | Zofia Suchecka | Script Supervisor |