Underrated science-fiction thriller about a superintelligent thinking machine, Proteus IV, designed by obsessive computer wizard Alex Harris (Fritz Weaver). His work with Proteus has irreparably damaged his marriage to Susan (Julie Christie), and the last straw comes when he installs an
extension of his brain child into their ultramodern home. The machine now controls everything from the doors and phones to the television and stove; after Susan throws Alex out, the computer stays and begins to assert its power. Proteus locks her in the house, isolating her from other human
beings, and proceeds to probe and study her anatomy. Before long it becomes clear that the co...