4 mosche di velluto grigio
- ವರ್ಷ: 1971
- ದೇಶ: France, Italy
- ಪ್ರಕಾರ: Thriller, Mystery, Horror
- ಸ್ಟುಡಿಯೋ: Universal Productions France S.A., Seda Spettacoli
- ಕೀವರ್ಡ್: photographer, blackmail, claustrophobia, decapitation, male homosexuality, serial killer, whodunit, giallo
- ನಿರ್ದೇಶಕ: Dario Argento
- ಪಾತ್ರವರ್ಗ: Michael Brandon, Mimsy Farmer, Jean-Pierre Marielle, Aldo Bufi Landi, Calisto Calisti, Marisa Fabbri