During a nighttime chase through the streets of Bologna, a young woman steals Coliandro's gun. While trying to track down the unknown woman, the inspector stumbles upon a dangerous criminal organization.

On the estate of a very wealthy man, an escort is cruelly murdered by a cold and determined hitman. The investigation leads Coliandro into the world of high-class prostitution.

Coliandro is caught up in a bank robbery in downtown Bologna. The three young and inexperienced robbers are quickly subdued by three hostages, who, in turn, take the others hostage.

Two gypsy girls steal something very important from the home of the wrong person, a corrupt Carabinieri marshal, who attempts to take revenge by ambushing them. One of the girls seeks refuge in Coliandro's house, seeking help.