Directed by: Elio Petri
Starring: Florinda Bolkan, Gianni Santuccio, Orazio Orlando
Revealing mistake: After the flashback where the police investigator tells Augusta he could murder her, and she asks him who'd solve the crime, it cuts to a man outside a store window looking into the store, whilst the investigator watches him from across the street. When this happens, two extras walk into the shot, and the extra wearing glasses can be seen looking at the camera when he walks by. (01:07:55)
Visible crew/equipment: In his car, the police investigator briefly stops in the middle of the road to put on a tie. There is a close-up shot where he begins to place the tie around his neck. In the shot, the reflection of a crew member sitting in the passenger seat can be seen reflected in the sunglasses that he is wearing. (01:12:29)
Il Dottore - Former head of homicide squad: The people are minor and, therefore, we have no choice but to repress: The repression is our vaccine.