Two crime families battle for supremacy in 1929 Chicago in this Italian crime spoof. One group, known as the "Sons of Mammasantissima" thereby professes its (ironic) dedication to the Virgin Mother. The other family works undercover from a Salvation Army soup kitchen. Neither family seems capable of accomplishing anything of note until a wily Sicilian arrives on the scene and sorts things out.
| Camera | Guglielmo Mancori | Director of Photography |
| Directing | Alfio Caltabiano | Director |
| Writing | Alfio Caltabiano | Screenplay |
| Sound | Guido De Angelis | Original Music Composer |
| Editing | Antonietta Zita | Editor |
| Writing | Sandro Continenza | Screenplay |
| Writing | Alfio Caltabiano | Story |
| Directing | Stefano Sbarigia | First Assistant Director |
| Directing | Maria Teresa Caruffo | Script Supervisor |
| Camera | Mario Sbrenna | Camera Operator |
| Camera | Aldo Marchiori | Assistant Camera |
| Costume & Make-Up | Gianfranco Mecacci | Makeup Artist |
| Costume & Make-Up | Anna Graziosi | Hairstylist |
| Production | Silvano Zignani | Unit Manager |
| Production | Willi Colombini | Production Secretary |
| Sound | Eugenio Rondani | Sound |
| Camera | Mario Mazzoni | Still Photographer |
| Crew | Gino Vagniluca | Special Effects |
| Art | Franco Bottari | Production Design |
| Art | Giacomo Caló Carducci | Production Design |
| Costume & Make-Up | Enrico Sabbatini | Costume Design |
| Costume & Make-Up | Massimo Lentini | Assistant Costume Designer |
| Editing | Andreina Casini | Assistant Editor |
| Editing | Bruno Micheli | Assistant Editor |
| Sound | Maurizio De Angelis | Original Music Composer |
| Production | Luciano Catenacci | Production Manager |