When mobsters try to put an honest policeman on the payroll, he seeks revenge on the mob. But, he soon learns that his actions, however honest, have dire consequences.

A gang of thieves decides to hit the headquarters of Aspex. The police intervened and only two of the robbers managed to escape with the loot, while the other two are forced to take hostages to escape. The police started investigations but also the gang leader, the Cat, will be hunting the first two escaped with the loot to get money, and revenge for their escape.

A story about a singer/showgirl who poses as a nurse to recover some stolen paintings, which for some reason are hidden in a military insane asylum.

Inspector Betti (Maurizio Merli) is transferred to Naples and immediately after his arrival receives a warm welcome from The Commandante (Barry Sullivan), the city's crime lord. Betti then goes on a personal mission against corruption and organized crime, and tries to force the syndicate out of town with any means necessary.

After graduating in correspondence detective, Riccardo Finzi arrives in Milan. The first case he deals with is the death of a young maid. Cockpit in a surreal yellow from a novel by Luciano Secchi.

A shoot out after a robbery ends with the death of the Chief of Police. Police detective Ghini goes in search of a suspect, Lanza, to avenge the death of his boss. Ghini's search leads him to Belli, a Sicilian gangster and 'Trashy', the dirty leader of a gang of killers. The action is violent as both police and criminals track down Belli who still finds some time to attempt a couple of robberies...

They're Italy's notorious "Ladies of the evening" catering to the strange cravings of their kinky, high-paying clients. But suddenly, the girls of the street find themselves being stalked by someone with desires even they can't satisfy. After a series of shocking crimes, the clues lead police to a pornographic film maker and his stable of lovely models and starlets. But can the authorities track down the "Hooker Maniac" before he strikes again?

Don Vincenzo is a well respected boss from Naples, but he protects people from other criminals, like gypsies, loan sharks and Don Bufalo...but as they say in Naples, a Mammasantissima either ends in jail or inside a grave.

De Luca is killed by Marchetti's chauffeur. Marchetti ordered the murder because he was to be accused by De Luca. The two have a car accident while going home to get an alibi. There is a witness, Sironi, who calls the police. But when the police arrive the car has gone and so have the two men. Inspector Santi and young judge Novelli look into the strange case. Marchetti, however, is a powerful man and Sironi and his family begin to be obsessed first by threats then by assaults.

Eurocrime/Poliziotteschi movie from 1973