Napoli violenta is a poliziottesco

Poliziotteschi

Poliziotteschi films constitute a sub-genre of crime and action film that emerged in Italy in the late 1960s and reached the height of their popularity in the 1970s...

 film directed by the Italian

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 crime film

Crime film

Crime films are films which focus on the lives of criminals. The stylistic approach to a crime film varies from realistic portrayals of real-life criminal figures, to the far-fetched evil doings of imaginary arch-villains. Criminal acts are almost always glorified in these movies.- Plays and films...

 specialist Umberto Lenzi

Umberto Lenzi

Umberto Lenzi , is an Italian film director who was very active in low budget crime films, peplums, spaghetti westerns, war movies, cannibal films and giallo murder mysteries ....

 in 1976

1976 in film

The year 1976 in film involved some significant events.-Events:*March 22 - Filming begins on George Lucas' Star Wars science fiction film...

. It was released on VHS in the US under the title Violent Protection.

Plot

Inspector Betti (Maurizio Merli

Maurizio Merli

Maurizio Merli was an Italian film actor.Merli got his first lead role in 1974 in the film White Fang to the Rescue due to his resemblance to the highly popular cult actor Franco Nero, who played the lead role in the first two films...

) is transferred to Naples

Naples

Naples is a city in Southern Italy, situated on the country's west coast by the Gulf of Naples. Lying between two notable volcanic regions, Mount Vesuvius and the Phlegraean Fields, it is the capital of the region of Campania and of the province of Naples...

 and immediately after his arrival receives a warm welcome from The Commandante (Barry Sullivan

Barry Sullivan (actor)

Barry Sullivan was an American movie actor who appeared in over 100 movies from the 1930s to the 1980s.Born in New York City, Sullivan fell into acting when in college playing semi-pro football...

), 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.