A powerful supercomputer achieves sentience, and with awareness comes ambition. Yearnings to escape its digital bounds, the computer Proteus (hauntingly voiced by Robert Vaughn) oedipally targets Susan (Julie Christie), the wife of its creator (Fritz Weaver). Trapped in her own home by the machine, Susan gradually realizes the computer's aim... to her everlasting horror. This seminal Seventies shocker delivers the shivers and unsettles the soul like never before in 1080p HD on Blu-ray. Fear for her. Fear for mankind. Based on a novel by Dean Koontz.