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Italian master of horror Dario Argento's second directorial effort is a suspenseful murder mystery infused with the filmmaker's trademark graphic violence. Karl Malden stars as a blind man with a talent for solving puzzles who teams-up with reporter Carlo Giordani (James Franciscus) to launch a private investigation into a string of peculiar murders, all of which seem to involve a dubious genetic research facility. The killer soon becomes wise to the duo's plans and will do whatever it takes to stop them from reporting to the police.
Horror
1971
1 hr 52 min
81%
Unrated
Starring
Karl Malden, James Franciscus, Catherine Spaak