Dario Argento directed this bloody thriller in the Hitchcock tradition about an investigative reporter who teams with a blind former newspaperman to find out who is killing all the people associated with a genetic laboratory. Karl Malden, James Franciscus and Catherine Spaak star. 112 min. Widescreen (Enhanced); Soundtracks: Italian Dolby Digital stereo, English Dolby Digital stereo, French Dolby Digital stereo; interviews; photo gallery; poster gallery; biographies; theatrical trailers; TV spots; radio spots. In Italian with English subtitles/Dubbed in English.