The Driller Killer (1979)

An artist slowly loses his mind as he and his two female friends scrape to pay the bills. The punk band downstairs increasingly agitates him, his art dealer is demanding that he complete his big canvas painting as promised, and he gets into fights with his girlfriends. When the dealer laughs at his canvas he snaps, and begins taking it out on the people responsible for his pain and random transients in the manner suggested by the title.