Inspector Angelo De Paul is assigned to investigate a horrifying series of murders that have gripped Venice and left the authorities baffled.
| Production | Gabriele Crisanti | Producer |
| Costume & Make-Up | Itala Giardina | Costume Designer |
| Writing | Aldo Serio | Screenplay |
| Sound | Berto Pisano | Original Music Composer |
| Sound | Silvio Spingi | Boom Operator |
| Sound | Umberto Picistrelli | Sound |
| Directing | Mirella Cavalloro | Script Supervisor |
| Production | Gianfranco Fornari | Production Secretary |
| Camera | Giuseppe Botteghi | Still Photographer |
| Camera | Gianni Marras | Assistant Camera |
| Directing | Mario Landi | Director |
| Editing | Mario Salvatori | Editor |
| Camera | Giacomo Testa | Camera Operator |
| Writing | Aldo Serio | Story |
| Production | Marcello Spingi | Unit Production Manager |
| Production | Nunzio De Angelis | Production Designer |
| Directing | Roberto Silvestrini | Assistant Director |
| Camera | Franco Villa | Director of Photography |
| Costume & Make-Up | Mauro Gavazzi | Makeup Artist |
| Directing | Adriana Lamacchia | Script Supervisor |
