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.

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 detective sick and tired of the rampant crime and violence in his city, and constantly at odds with his superiors, is finally kicked out of the department for a "questionable" shooting of a vicious criminal. However, he is soon approached by a representative for a group of citizens who themselves are fed up with what they see as criminals going unpunished, and they make him an offer he may very well not refuse.

Palermo kolem roku 1970. Policejní komisař Bonavia (Martin Balsam) provádí rutinní kontrolu městského ústavu pro duševně choré, který je viditelně zanedbaný. Komisař se rozhodne nad vedením blázince přivřít oči, pokud ovšem okamžitě propustí jednoho ze svěřenců a prohlásí ho za zdravého. Zdánlivá laskavost dá do pohybu nebezpečnou hru s mafií a zatáhne ostříleného policistu do bratrovražedného střetu s dalším ochráncem zákona, idealistickým prokurátorem Trainim (Franco Nero).

A documentary concerning the violent Italian 'poliziotteschi' cinematic movement of the 1970s which, at first glance, seem to be rip-offs of American crime films like DIRTY HARRY or THE GODFATHER, but which really address Italian issues like the Sicilian Mafia and red terrorism. Perhaps even more interesting than the films themselves were the rushed methods of production (stars performing their own stunts, stealing shots, no live sound) and the bleed-over between real-life crime and movie crime.

When private detective Bob Martin looking for a stolen diamond necklace, he also has a clever serial killer on the trail ...

An Ottawa police captain searches for the person who poisoned his sister, who was attending the university in Montreal. So desperate is he for revenge that he begin to use his own brutal methods to find the killer. Soon he discovers that not everything is what he thought it was.

By day, Ovidio (Joe Dallesandro) and his two friends work at a data center. After work, they blow off steam by committing random acts of savage violence, swiftly graduating from sparking a riot at a football game to vehicle theft, rape, and murder. The police are convinced this recent spate of crimes is politically motivated, but world-weary veteran Commissario Santaga (Enrico Maria Salerno) suspects a far more terrifying explanation: that these young men are motivated by nothing more than boredom and disaffection at civilized society. As Ovidio's behavior escalates, a psychological game of cat-and-mouse ensues between the two adversaries, building towards a shocking final confrontation.

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.

Policejní důstojník Dario Mauri, kterého převeleli do Neapole, se rozhodne ukončit brutální válku mezi mafiánským bossem a jeho nepřáteli z podsvětí.

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.

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.

Policejní komisař se snaží dostat před soud zločineckého bosse, který to tak přeháněl, že se proti němu postavili i jeho spojenci z podsvětí.

Detective Baldassarre spends his forced exile sorting criminal records. He gets a chance to return to the line of fire when two people, an aristocrat and a worker are struck by lightning inside a fancy mansion. The incident would be relegated to freak accidents, but Baldassare's attention is drawn to the strangeness of the events and he begins to investigate.

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.

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.

The investigation of the bombing of a hotel lobby as seen through the eyes of a young detective.

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.

Carlo, a young photographer, is making love with his girlfriend at the beach when he witnesses a murder being feebly staged to look like a car accident. Carlo takes incriminating shots of the murderers (the victim turns out to be the local public prosecutor) and attempts to sell them to various interested parties, including a gangster and a newspaper owner. One of the murderers' accomplices, a lowlife criminal, is gunned down by a black-gloved assassin, while another is stabbed to death...

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...