When a simple robbery at a research institute leads to a series ob brutal murders, a blind puzzle maker (Karl Malden) and a tenacious reporter (James Franciscus) begin their own investigation of the crimes. With 9 different clues to follow, they uncover a shocking web of twisted genetics and dark sexual secrets that will finally lead them to a shattering climax of violence and suspense. Dario Argento directs the uncut and uncensored High Definition transfer of this film.