After Annunziata (Angela Molina) opens up a hostel with her friend Antonio (Daniel Ezralow), she is saved from being raped by a Camorra boss as the gangster is suddenly killed. The killer escapes before Annunziata is able to see who it was. Following this murder are several others, and always with the same “signature” — a syringe in one of the testicles of the victims. As the gangsters continue to be killed off, the identity of the killer – or killers – slowly becomes obvious.
| Directing | Lina Wertmüller | Director |
| Writing | Lina Wertmüller | Writer |
| Writing | Elvio Porta | Writer |
| Sound | Tony Esposito | Music |
| Camera | Giuseppe Lanci | Director of Photography |
| Production | Yoram Globus | Producer |
| Production | Menahem Golan | Producer |
| Sound | Ron Bartlett | Sound Editor |
| Editing | Luigi Zitta | Editor |
| Sound | Ed Callahan | Supervising Sound Editor |
| Sound | Baird Bryant | Sound Editor |
| Art | Gianni Giovagnoni | Art Direction |
| Sound | David Bartlett | Sound Editor |
| Editing | Michael J. Duthie | Editor |
| Art | Enrico Job | Production Design |
| Sound | Tullio Arcangeli | Sound Designer |
| Production | John Thompson | Associate Producer |
| Production | Fulvio Lucisano | Producer |
