Maniac is a 1980 American exploitation slasher horror film directed by William Lustig and written by Joe Spinell and C. A. Rosenberg. The plot focuses on a disturbed and traumatized serial killer who scalps his victims. Spinell also developed the story and stars as the lead character. Wikipedia
Frank Zito: I told you not to go out tonight didn't I? Every time you go out this kind of thing happens.