Umberto Lenzi 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 & crime infested cesspool of mid-'70s Rome, on the trail of a sadistic, machine gun-toting hunchback, played by Tomas Milia.