During the security service at the city stadium, Coliandro and agent Balboni arrest an ultra who had tried to stab a policeman: terrified of ending up in prison, the boy collaborates and provides the policemen with some important information.

The husband of an old Coliandro professor is killed inside the University of Bologna. The woman is accused of the murder due to the constant escapades of her husband: did she really go like this?

Agent Gargiulo shows up at Coliandro's house in the middle of the night, drunk and with a bloody knife in his hand: the inspector tries to reconstruct what happened, but it doesn't seem easy.

A young Muslim girl shows up in Coliandro's office to report the sudden and mysterious disappearance of her father. Reluctantly, the inspector still decides to do some investigation around the city.