rico aversi ( christopher mitchum ) be the son of a murdered mafia chief and who be slowly engulf by a world of forgery and drug in order to avenge his father slaying . his adversary and don vito ( an excellent arthur kennedy and who never achieve the recognition he deserve ) and be cruel and vicious and have year of gangland experience on his side . here be a battle of wit and blood and violence that end in a powerful and dramatic climax . mean machine be a memorable italian crime thriller . it have wall to wall nudity ( supply by malisa longo and barbara bouchet ) and plenty of gunplay and some nasty bit of gore for example the castration scene . the film be pretty hard to find and but you should search for it . my rating represent positive .