Rolando, who was close to marrying the daughter of the Doge, is condemned after a highly unfair judicial process and locked up in Venice. Digging a tunnel with the aid of his cellmate, Rolando succeeds to escape.
| Directing | Carlo Campogalliani | Director |
| Directing | Piero Pierotti | Director |
| Sound | Angelo Francesco Lavagnino | Music |
| Writing | Oreste Biancoli | Screenplay |
| Writing | Gian Paolo Callegari | Screenplay |
| Writing | Carlo Campogalliani | Screenplay |
| Writing | Piero Pierotti | Screenplay |
| Writing | Manuel Pilares | Screenplay |
| Writing | Duccio Tessari | Screenplay |
| Writing | Michel Zévaco | Novel |
| Production | Luigi Carpentieri | Producer |
| Production | Ermanno Donati | Producer |
| Production | Piero Donati | Producer |
| Production | Pedro Escuder | Producer's Assistant |
| Production | Victoria Gómez | Producer's Assistant |
| Production | José María Rodríguez | Producer |
| Camera | Rafael Pacheco | Director of Photography |
| Camera | Luciano Trasatti | Director of Photography |
| Editing | Ornella Micheli | Editor |
| Art | Félix Michelena | Set Decoration |
| Art | Augusto Lega | Set Decoration |
| Costume & Make-Up | Iole Cecchini | Hairstylist |
| Costume & Make-Up | Iolanda Conti | Hairdresser |
| Costume & Make-Up | Maurizio Giustini | Makeup Artist |
| Costume & Make-Up | Ricardo Vázquez | Makeup Artist |
| Production | Giorgio Baldi | Production Manager |
| Production | Antonio Ibañez | Production Manager |
| Production | José María Rodríguez | Production Director |
| Directing | Rafael Romero Marchent | Assistant Director |
| Art | Aldo Capuano | Art Department Assistant |
| Art | Aurelio Crugnola | Art Direction |
| Sound | Alessandro Sarandrea | Sound Engineer |
| Camera | Víctor Benítez | Still Photographer |
| Camera | Hans Burmann | First Assistant Camera |
| Camera | Mario Capriotti | Camera Operator |
| Camera | Diego Úbeda | Assistant Camera |
| Directing | Bruna Malaguti | Script Supervisor |
| Production | Ennio Di Meo | Production Secretary |
| Production | Piero Donati | Production Coordinator |
| Crew | Gaetano Scala | Master at Arms |