由Gaylen Ross领衔主演的狂人上映于1981年，是一部恐怖片类型影视作品，对白语言是英语。讲述了　　At a summer camp for youths, cockey pre-teen calls out the name of mass serial killer "Madman Marz". Suddenly, counselors are being maimed and slaughtered in various ways by the backwoodsman who has returned when his name was called.