The Italian soldier Giuseppe Santucci, on his way home from the Russian front has his machine gun stolen in Warsaw. Afraid of consequences, he stays in Warsaw and occupies a flat of the Polish girl Maria, whom he suspects of stealing weapon. Maria indeed is an active member of the Polish resistance, contrary to her brother, Staszek, a painter, who only wants a calm living. In a course of events Giuseppe falls in love and, along with Staszek, becomes a hero of the Polish resistance.
| Directing | Stanisław Lenartowicz | Director |
| Sound | Wojciech Kilar | Music |
| Camera | Antoni Nurzyński | Director of Photography |
| Writing | Jacek Wejroch | Screenplay |
| Directing | Zbigniew Kociuba | Assistant Director |
| Directing | Jerzy Karwowski | Assistant Director |
| Directing | Marian Zietkiewicz | Assistant Director |
| Directing | Beata Bilska | Assistant Director |
| Camera | Mieczysław Verocsy | Camera Operator |
| Camera | Jerzy Szurowski | Assistant Camera |
| Camera | Mieczyslaw Sitarz | Assistant Camera |
| Art | Jan Grandys | Production Design |
| Art | Maria Szafran | Assistant Production Design |
| Art | Zbigniew Ostoja-Zagórski | Assistant Production Design |
| Art | Albert Kuchnia | Assistant Production Design |
| Costume & Make-Up | Janina Koźmińska | Costume Design |
| Costume & Make-Up | Alicja Wasilewska | Costume Assistant |
| Sound | Stefan Marczyk | Conductor |
| Sound | Stanisław Piotrowski | Sound |
| Sound | Aleksander Gołębiowski | Sound Assistant |
| Sound | Kazimierz Siczek | Sound Assistant |
| Editing | Halina Nawrocka | Editor |
| Editing | Janina Kondzioła | Assistant Editor |
| Costume & Make-Up | Zbigniew Dobracki | Makeup Artist |
| Costume & Make-Up | Maria Maziarz | Assistant Makeup Artist |
| Production | Tadeusz Karwański | Production Manager |
| Production | Zbigniew Tołłoczko | Assistant Production Manager |
| Production | Zbigniew Ronert | Assistant Production Manager |
| Production | Henryk Kozłowski | Assistant Production Manager |