A college professor returns home to visit his Catholic priest brother in a villa where there a series of brutal murders by a black gloved killer. The professor Has disturbing childhood flashbacks while his preist brother receives threatening letters from the killer. The two set out to find the identity of the killer before they become one of his next victims. Riveting giallo directed by Antonio Bido. Despite the usual giallo formula and a typical "twist" ending this is an excellent effort from Bido and has a killer score by one of the members of Goblin. If you re a fan of the genre this one will satiate your giallo needs. Highly reccomended. 4/5