George Hilton stars in this devilishly entertaining giallo thriller about a garishly costumed killer knocking off people in Athens. Introducing Mrs. Baumer (Ida Galli) as the nominal heroine, director Sergio Martino then pulls a Psycho number by having her killed as she goes to collect the insurance left by her husband, who died in an airplane disaster. It's up to French reporter Anita Strindberg to figure out what happened before becoming a victim herself. This fun little Italian-Spanish co-production features an international cast of horror veterans like Janine Reynaud, Luis Barboo, and Luigi Pistilli. Martino went on to make the bloodier giallo hit Torso.