FOUR FLIES ON GREY VELVET aka 4 MOSCHI DI VELLUTO GRIGIO aka QUATRE MOUCHES DE VELOURS GRIS - 1971

 

Roberto, musicien, tue par mégarde un étranger qui le harcèle. Il est photographié à son insu et menacé par un nouvel individu qui commence à tuer tout le monde autour de lui. Roberto, a musician, is stalked by an unknown killer who's blackmailing him after his accidential killing of another stalker. But can he stop him berfore he kills all his friends and is everything what it appears to be?