Luigi Bazzoni (Le Orme) directed this outstanding giallo thriller starring Franco Nero as a hard-drinking newspaperman who gets involved in a string of brutal murders. After he investigates the first, he becomes a suspect himself but eventually manages to unravel a complex plot involving blackmail, adultery, and private sex shows. Wolfgang Preiss plays a creepy doctor, and Edmund Purdom is around as well. The impressive score is by Ennio Morricone, and the film looks great thanks to cinematographer Vittorio Storaro, on his way to his triumph with Last Tango in Paris.
by Robert Firsching synopsis