An empty barge drifts downriver with the owner missing. That same night Inspector Soneri is called in to investigate the murder of the boatman's brother. The brothers served together in the fascist militia fifty years earlier and Soneri must navigate ancient loyalties and deep-rooted rivalries before he can find out the truth.

As he investigates the murder of an elderly friend, Soneri discovers that she once rented rooms by the hour and carried out illegal abortions in her pension. The key to solving her murder may lay in these illicit activities, but the Inspector fears that there could be a deeper mystery with ties to his marriage and his most cherished sentiments.

Following the death of a former police inspector, Inspector Soneri has the job of discovering what made a valorous officer go crooked. During the investigation he finds himself battling his friend and colleague Angela, who is defending one of the suspects, and it leads to a fatal professional embarrassment.

Inspector Soneri finds himself with an all-female case, filled with men who are too much in love, girls who have messy pasts and fellow officers with time-worn secrets. To solve the case and save the life of his friend Angela, he must investigate the darkest side of what has always been a mystery for him: women.

Two senior citizens are found at the bottom of the river in their car. Was it suicide or homicide?

Inspector Soneri offers to take an orphan boy home with him in an effort to solve a murder case.

Inspector Soneri investigates a hit and run fatality, and he considers starting a family.

Soneri investigates the brutal killing of a prostitute, and he and Angela discuss their future together.

A popular teenage girl from a well-known family is found dead. Commissario Soneri and his team discover she was making secret trips to Bologna.

Commissario Soneri is all ready for his reassignment to headquarters in Rome, when a case comes up he can't walk away from. A local high-profile attorney is found dead in his apartment, and there seems to be a connection between the victim and Soneri's ex-girlfriend, Angela.

Commissario Soneri’s ex-girlfriend Angela ends up in a bed next to a murdered man. Soneri claims he can work impartially on the investigation. Or can he?

Commissario Soneri gets transferred to Torino, and his first case there involves a beautiful woman found strangled in a car that’s plunged off a cliff.

A gang of hooded youths has been stealing from villas in the hills of Torino, leaving behind a black hood as a signature. When a young man from an aristocratic family is found murdered, it’s blamed on the hooded thieves.

A young girl is found off a pier practically beaten to death. When it becomes clear that she’s witnessed a murder, Soneri has to get to the bottom of things before she becomes a murder victim herself.