Very good screen adaptation of Dean Koontz's early paperback original sci-fi thriller.
Government think-tank scientist Fritz Weaver is the mastermind behind the creation of the first genuine artificial intelligence, Proteus IV. Proteus is so intelligent, he refuses to comply with assignments to strip-mine Earth's oceans, since that would create an environmental instability ultimately threatening to man. Seeking an answer to the riddle of man's "isometric body and his glass-jaw mind," Proteus decides to conduct a clandestine experiment of his own on the human species. Proteus' lab subject is Weaver's wife, Julie Christie. His ultimate aim: to synthetically create life in Christie's womb, and see it through to term...whether she cooperates, or not.
This is a great flick, suffering only from a rather bland 1970s look and the decidedly unappealing subjects of abduction and rape. Christie largely performs a one-woman show as the subject of Proteus' unwanted attentions, though the other performers are equally good. Gerrit Graham does a nice minor support turn as Christie's unlucky would-be rescuer, and Robert Vaughn voices Proteus with chilling detachment. The effects are generally pretty good, though the computer-generated stuff is terribly primitive by today's standards.
Despite the unpleasantness of its subject matter, Demon Seed turns out to be a fascinating and strangely uplifting film by the time it's over. It's very suspenseful, and holds your attention throughout. It's also refreshingly adult.
The original novel, if you can find it, is different in some regards but is an excellent read - Koontz's recent rewrite of it is nowhere near as good as either the original or this movie.