A female school teacher is implicated in a murder in a Sicilian town only hours after her arrival. The dead man insulted her on the bus on the way into town. As the mystery unfolds, it becomes clear that the town is hiding some very sinister secrets.
| Directing | Luigi Zampa | Director |
| Camera | Ennio Guarnieri | Director of Photography |
| Writing | Giuseppe Fava | Novel |
| Writing | Luigi Zampa | Screenplay |
| Writing | Leonardo Benvenuti | Screenplay |
| Editing | Franco Fraticelli | Editor |
| Writing | Piero De Bernardi | Screenplay |
| Art | Luigi Scaccianoce | Production Design |
| Production | Carlo Ponti | Producer |
| Sound | Ennio Morricone | Original Music Composer |
| Production | Alfredo Mirabile | Line Producer |
| Production | Turi Vasile | Associate Producer |
| Costume & Make-Up | Danda Ortona | Costume Design |
| Costume & Make-Up | Massimo Giustini | Makeup Artist |
| Art | Bruno Cesari | Set Decoration |