- HD 1080
- Runtime: 110m.
- Status: Released
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- Languages: it
- Country: France, Italy
- Director: Steno
- Stars: Bud Spencer, Adalberto Maria Merli, Raymond Pellegrin, Juliette Mayniel, Mario Pilar
- keywords: corruption, police chief, naples, italy, murder, drugs
- Production_studio: C.A.P.A.C., Mondial Televisione Film
- Slogan: A one man demolition squad!
- The The Knock Out Cop is featured in the top rankings of 1973
- #37 in Top Comedy Movies of 1973
- #86 in Top Drama Movies of 1973
- #23 in Top Action Movies of 1973
- #36 in Top Crime Movies of 1973
Inspector “Flatfoot” Rizzo investigates crime and corruption in Naples.