导演：费尔南多·迪·莱沃 

主演：克劳斯·金斯基 欧露莎尔芭·奈丽 卡拉·曼奇尼 玛格丽特·李 费尔南多·杰鲁尼 莫妮卡·斯特雷贝尔 

A cloaked figure slips into an exclusive psychiatric clinic and murders one of the female patients. Meanwhile, various sexuals liaisons are revealed. The mystery killer continues with his massacre: he beheads a nurse with a scythe, pushes a chauffeur into a spiked “Iron Maiden”, strangles an older female patient, kills a nymphomaniac with an axe, and shoots a lesbian through the neck with a crossbow. Doctor Clay and the police set a trap for the killer using one of the attractive female patients as bait. However, they are not prepared for the onslaugth that follows…