A suspect dies during a police operation in the tough Pilastro neighborhood, apparently killed by a gunshot fired from Inspector Trombetti's weapon. Coliandro investigates to try to exonerate his colleague.

A young black girl is killed during what appears to be a voodoo ritual. Coliandro is assigned to care for the victim's sister, who has arrived in Bologna from Africa.

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.

While maintaining order at the city stadium, Coliandro and Officer Balboni arrest a football fan who had tried to stab a policeman. Terrified by the thought of ending up in prison, the boy cooperates and provides the police with some important information.

Officer 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.

The husband of a former professor from Coliandro is murdered inside the University of Bologna. The woman is accused of the murder because of her husband's constant escapades: could this really be true?

A young Muslim girl shows up at Coliandro's office to report her father's sudden and mysterious disappearance. Reluctantly, the inspector nevertheless decides to investigate the matter around town.

In the trial against the Casalesi clan boss, the Bologna prosecutor's office must rely on the testimony of Jelena, who is now under protection. Coliandro, still in love with the woman, learns of her new cover and decides to visit her. There, however, he must contend with two seasoned killers.

As punishment, Coliandro has been transferred again, this time to the tedious canine unit. His sister comes to visit him, deeply concerned about her daughter Angelica, who is dating a boy associated with a satanic cult.

Natasha, a beautiful international assassin, arrives in Bologna pursued by secret services from around the world. Coliandro must defend her from them... and himself from her.

Coliandro must protect Giacomino, a peculiar, funny, and brilliant character who saw something he shouldn't have seen and is under death threat.

Coliandro must defend Remedios, a beautiful deaf girl, the only witness to the trafficking of a Latin American gang.

After a fall, Coliandro loses his memory and temporarily becomes a real tough guy, teaming up with a young nerd in the hunt for a gang of international terrorists.

Coliandro has to pose as a taxi driver for a trivial public safety operation, but a beautiful "crazy" woman climbs aboard and the situation changes radically.

After shooting two teenagers, Coliandro is forced to see a beautiful psychologist at the Ministry, who is dedicated to helping those officers most likely to use firearms.