Four Flies on Grey Velvet

1971 · 104 min · dir. Dario Argento

Four Flies on Grey Velvet is a 1971 giallo film co-written and directed by Dario Argento, and starring Michael Brandon, Mimsy Farmer, Jean-Pierre Marielle, Francine Racette and Bud Spencer. The film concerns musician Roberto Tobias (Brandon), who accidentally kills a man and is then tormented by someone who witnessed the event. Synopsis from Wikipedia, CC BY-SA.