A superb dual performance by Jeremy Irons drives this disturbing psycho-suspenser from director David Cronenberg. Irons stars as Beverly and Elliot Mantle, identical twin brothers and gynecologists who share all: a successful practice, an apartment, and their sexual conquests. The bizarre balance of their relationship is threatened when Beverly, the less confident of the two, develops feelings for their newest patient (Geneviève Bujold). With Heidi von Palleske, Barbara Gordon, Stephen Lack. 116 min. Widescreen; Soundtrack: English; Subtitles: English. Two-disc set.