Sadistic no-count killer Nanni Vitali and three other equally brutish hoodlums escape from prison. The foul foursome embark on a savage rape, murder, and robbery spree. Vitali even abducts and defiles frightened hapless lass Giuliana Caroli. Meanwhile, rugged police inspector Giulio Santini is determined to bag the despicable Vitali.
A Milan pimp faces off against a ruthless and greedy French gangster whom wants to unite organized crime in Italy.
A corrupt cop steals evidence of a Mafia drug ring with plans to sell it to their rivals, but is hunted by the mafia and government agents.
In Genoa, the Commissioner Sironi has identified the leader of the ferocious racket that controls the port activities. But the law restrains his action.
Sandro, a detective, finds his wife strangled. His girl-friend Tiffany, who works as photographer, makes a "Blow up" from a photo, what Sandro finds beside the victim. Sandro and Tiffany are looking for the woman on the photo, Laura. They finds her in a Night Club in Rome...
Michael considers himself a genius criminal and plans the big coup. He forms three new gangs who know nothing about each other and each only know part of his plan. In the background Michael pulls the strings and mercilessly plays the actors on his stage against each other. This strategy also poses unsolvable problems for the police until something goes wrong and the house of cards collapses.
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.
The city of Turin is in the grip of a brutal crime boss known as "Il Marsigliese" and plenty of cops have good cause to want him dead — none more than Inspector Vanni, whose wife was murdered by the ruthless gangster. Having exhausted every other avenue, Vanni forms a crack squad of motorcycle-riding, Colt .38-toting elite officers, tasked with meting out justice on the margins of the law. But when "Il Marsigliese" launches a bombing campaign designed to extort a vast ransom from the city's authorities, Vanni finds himself in a race against time to exact his revenge and avert disaster.
Carlo Antonelli, an engineer from Genoa, gets mugged and decides to take justice into his own hands. At first the muggers seem to get the upper hand, but then he's helped by Tommy, a young robber who takes his side.
Franco Nero and Telly Savalas star in the story of a trio of jewel thieves on the lam after a heist goes very wrong. Wrecking their car they take another unaware that there is a teenager hiding in the back. As the flight becomes more frantic, the young man is discovered, upsetting the balance of the thieves.
A tough, violent cop who doesn't mind bending the law goes after a machine-gun-carrying, hunchbacked psychotic killer.
An ill-assorted group of international criminals executes a tightly-planned ransom sting in Spain. Things go along swimmingly until various tensions within the group come to the fore.
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 drug deal goes bad and the heroin is stolen. One mob boss doesn't have his drugs and the other doesn't get his money. People are going to die until they discover who double-crossed them. Into this backdrop, Inspector Dario Mauri arrives from Milan to help clean-up Naples. His mission – find the drugs and stop the killing.
An ex-Vietnam vet is forced to become a hit-man and gets caught in the middle of a conspiracy.
Carolina Miceli, widow of Salvatore Caruso, arrived at the bedside of the dying boss Gaetano Liguoro, tells how, discordant about drug trafficking, the brothers Gaetano and Tony Liguori have opened hostilities against his father Calogero Miceli, backed by politicians.
Cliff works as a narcotics investigator for the police and infiltrate a mafia gang. Soon it turns out that Cliff has bigger plans than just to bust bad guys.
A police captain arranges the release of a criminally insane prisoner, who soon winds up dead. When the District Attorney takes on the case, he uncovers corruption in the department and vows to take down the man who's responsible.
When a crime boss is murdered while in hospital, a young woman sees the killers, but her room mate convinces her not to tell the police, fearing the consequences. Unfortunately the murderers realize that they have been seen, and kill both women. Catching the killers proves difficult as anyone who knows anything dies in unexplained circumstances. It becomes evident that a large and powerful criminal organization is behind the murders, and that they have links within the police force. It is up to Lt. Carmine to see that justice prevails, using any means necessary.
When a journalist is murdered Inspector Micheli begins to investigate. Although someone comes forward to confess to the crime, Micheli doesn't believe he acted alone and keeps investigating despite coming under pressure to close the case.