A musician is stalked by an unknown homicidal maniac, who blackmails him for the accidental killing of another stalker.
Directed By
Dario ArgentoWritten By
Dario Argento, Mario Foglietti, Luigi ColloStudio
Universal Productions France S.A., Seda SpettacoliCast of Four Flies on Grey Velvet
Four Flies on Grey Velvet Reviews