Jeremy Irons gives a deftly brilliant performance as twin gynecologists -- yes, that's right -- Elliot and Beverly Mantl, who can't help spiraling into madness and addiction when they meet a pill-popping actress (Geneviève Bujold) who hopes to have children. David Cronenberg's script and direction mix high-tech camera work with old-fashioned suspense to create a tangible sense of lunacy and compulsion in this psychological thriller.