Professor Ricardo Rossi is an uncompromising moralist and a paladin of Catholic morals. He is understandably baffled when he finds his wife Elisa in bed with another woman (whom Rossi mistakens for a man). Furious, he poisons his wife and throws her body into a lake, then brings home a prostitute, Eva, to replace her. He also begins an affair with his niece Barbara. But Elisa is not dead, as Rossi soon finds and she is plotting with Eva to get rid of him. Rossi is more precise this time and shoots the two women dead. However, there is a complication and more deaths ensue...
| Directing | Francesco Degli Espinosa | Assistant Director |
| Costume & Make-Up | Gloria Granati | Makeup Artist |
| Production | Giuseppe Gargiulo | Production Supervisor |
| Camera | Gianni De Martis | Still Photographer |
| Directing | Clara Tamburini | Script Supervisor |
| Writing | Renato Polselli | Screenplay |
| Camera | Giancarlo Filoni | Still Photographer |
| Crew | Angelo Baistrocchi | Cinematography |
| Editing | Roberto Colangeli | Editor |
| Sound | Felice Di Stefano | Original Music Composer |
| Camera | Massimo Lupi | Assistant Camera |
| Sound | Gianfranco Di Stefano | Original Music Composer |
| Production | Giuseppe Frontani | Production Manager |
| Production | Vincenzo Matassi | Producer |
| Writing | Renato Polselli | Story |
| Costume & Make-Up | Stefano Paltrinieri | Assistant Costume Designer |
| Directing | Francesco Degli Espinosa | Director |
| Production | Giovanni Fratalocchi | Production Designer |
