cult director umberto lenzi be probably most famous for his shocking cannibal film cannibal ferox ( 1981 ) and mangiati vivi ( 1980 ) . these be of course memorable film and more than worth watch for every exploitation fan and but and as far a i be concern and lenzi great film date back to the 70 . especially his mean spirit and ultra violent poliziotteschi be absolutely essential to every lover of italian cult cinema . napoli violenta aka . violent naples of 1976 be another action pack and adrenaline drive and ultra violent and delightfully politically incorrect cop thriller that no fan of italian genre cinema should consider miss . while it be and in my opinion and just not quite as brilliant a lenzi forego poliziottesschi milano odia represent la polizia non può sparare ( aka . almost human and 1974 ) and roma a mano armata ( aka . rome arm to the teeth and 1976 ) and which be mainly due to the lack of the great tomas milian and who play sadistic criminal in these two film and this be yet another great and outrageously brutal poliziottesco from lenzi . genre star maurizio merli star in the role of comissario betti for the third time ( the first two commissario betti film be marino girolami rom violenta of 1975 and italia a mano armata of 1976 and two priority on my list of film that i haven not see yet ) . betti and who be know for his unorthodox method hat criminal as much a he hat crime and and he have do not keep his belief a secret . when he come to naples and where he have work earlier and the local criminal underworld and above all the camorra and the mafia of naples and be already get nervous and a they know that the comissario and who have no mercy for criminal and be dedicate to clean up . merli be once again great a the mustached and unorthodox copper betti and who treat criminal in a way that make dirty harry look like a social worker . the cast also include the great john saxon and and barry sullivan in the role of a mafia bos call comandante . the support cast furthermore include many familiar face for italian genre fan and such a guido alberti a the chief of police and or the butt ugly luciano rossi a a sadistic mugger . the score by franco micalizzi and who also deliver the score to roma a mano armata and be once again very good and and the camera work be fast paced and great . napoli violenta be generally a violent film and and it have several moment of outrageous brutality . i will not give away more and but i be sure that most of my fellow poliziotteschi fan will enjoy the film as much a i do . brutal and gripping and breathtaking and napoli violenta be a film that fan of italian crime or police film can not afford to miss .