血蝶是由杜奇奥·泰萨利执导的一部拍摄于1971年悬疑,惊悚,恐怖片在其它上映，主演由赫尔穆特·贝格,贾恩卡洛·斯布拉贾,伊妲·伽利,温迪·德奥利芙,金特·施托尔,沃尔夫冈·普莱斯,洛雷拉·德卢卡,Peter,Shepherd,盖比瑞拉·德奥利芙,斯特法诺·奥佩迪萨诺,安娜·金尼曼,达娜·吉亚,Federica,Tessari,凯荷·安德烈,卡拉·曼奇尼领衔。　　Duccio Tessari's rare Giallo starring Helmut Berger, Giancarlo Sbragia, Evelyn Stewart, Silvano Tranquilli & Carole Andre. A young student is murdered in a park by an unseen assailant during a heavy thunderstorm. The murderer makes his escape, but is identified by a number of people at the park exit. A sports presenter from a local TV channel, Alessandro Marchi, is quickly arrested, and despite protestations of innocence, is charged with the murder　　Marchi calls his lawyer, who promises to have him released very soon, but when it comes to the trial the lawyers case is a weak one, full of holes, and Marchi is duly found guilty.　　All is not what it seems and it soon becomes apparent that the lawyer is having an affair with Marchi's wife and obviously does not have Marchi's best interests at heart…