A twisted psychological thriller from director David Cronenberg exploring the dangerous dynamics between identical twin gynecologists who exploit their uncanny resemblance—until obsession over the same woman fractures their bond. Starring Jeremy Irons in a dual role alongside Geneviève Bujold, this provocative 1988 film examines identity, manipulation, and the dark consequences of deception. Written by Cronenberg, Norman Snider, and Bari Wood.