Umberto Lenzi legendary director kicked off the Italian police film craze with this hyper-kinetic ultra-violent, brain-blasting action thriller. Maurizio Meril stars as an Italian Dirty Harry, Punching and shooting his way through the sleazy drug sex and crime infested cesspool of mid'70s Rome, on the trail of a sadistic, machine gun-toting hunchback, played by Tomas Milian star of The Big Gundown