A teenage boy from a respectable family, Stanisław Czajkowski, dies in mysterious circumstances in a Krakow guesthouse. His brother-in-law, Count Maksymilian Rotter, married to Stanisław's older sister, Ksawera, is accused of the murder.
| Directing | Mariusz Malinowski | Director |
| Writing | Janusz Majewski | Writer |
| Camera | Stefan Pindelski | Director of Photography |
| Art | Zdzislaw Staszewski | Production Design |
| Art | Barbara Komosińska | Set Decoration |
| Art | Anna Jekiełek | Set Decoration |
| Costume & Make-Up | Jolanta Jackowska | Costume Designer |
| Sound | Stanisław Radwan | Original Music Composer |
| Editing | Anna Skowrońska-Zbrowska | Editor |
| Costume & Make-Up | Stanisława Jeżewska | Makeup Department Head |
| Costume & Make-Up | Krystyna Leszczyńska | Makeup Department Head |
| Production | Wilhelm Hollender | Production Manager |
| Writing | Stanisław Szenic | Book |