Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders...

灰天鵝絨上的四只蒼蠅是由邁克爾·布蘭登,梅茜·琺瑪,讓-皮埃爾·馬里埃爾,弗朗辛·拉塞特主演的恐怖片全集,在1971年拍攝其它上映播出,星辰影院提供了灰天鵝絨上的四只蒼蠅電影,灰天鵝絨上的四只蒼蠅電影高清版,灰天鵝絨上的四只蒼蠅免費在線觀看,并且還可以支持手機看,不需要下載播放器,方便廣大影迷。