
Early Dario Argento thriller. Karl Malden plays a former newsman, Franco Arno, who has been blinded in an accident, but his thirst for solving puzzles has never been quelled. He overhears a blackmail plot and teams up with an investigative journalist to uncover the truth behind a sinister chain of grisly murders, but that old cat-killer, curiosity, may be the pair's eventual downfall.
Director: Dario Argento
Producer: Salvatore Argento
Writer: Dario Argento
Writer: Luigi Collo
Writer: Dardano Sacchetti
Music: Ennio Morricone
Cinematographer: Erico Menczer
Actor: James Franciscus
Actor: Karl Malden
Actor: Catherine Spaak
Actor: Cinzia Carolis
Actor: Carlo Alighiero
Actor: Pier Paolo Capponi