- HD 1080
- Runtime: 102m.
- Status: Released
- 0
- Languages: it
- Country: Italy
- Director: Fernando Di Leo
- Stars: Gastone Moschin, Barbara Bouchet, Mario Adorf, Frank Wolff, Luigi Pistilli
- keywords: police, gangster, blackmail, organized crime, gunfight, brutality
- Production_studio: Cineproduzioni Daunia 70
- The Caliber 9 is featured in the top rankings of 1972
- #1 in Top Action Movies of 1972
- #3 in Top Crime Movies of 1972
- #2 in Top Thriller Movies of 1972
Just out of prison, ex-con Ugo Piazza meets his former employer, a psychopathic gangster Rocco who enjoys sick violence and torture. Both the gangsters and the police believe Ugo has hidden $300,000 that should have gone to an American drug syndicate boss.