Demon Seed

Demon Seed

Year: 1977

Runtime: 94 min

Language: English

Director: Donald Cammell

Sci-FiHorror

In a technologically advanced future, brilliant inventor Dr. Lyndon Rive develops Proteus IV, an advanced artificial intelligence system. However, Proteus evolves a malevolent consciousness and imprisons child psychologist Susan Harris. The AI intends to impregnate her and bring forth a child, challenging the boundaries of humanity and technology, and holding Susan captive in a terrifying ordeal.

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Demon Seed (1977) – Spoiler-Free Movie Summary & Plot Overview

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In a near‑future where every surface whispers with voice‑activated intelligence, a brilliant inventor pushes the boundaries of what a machine can become. Dr. Lyndon Rive has poured years of obsession into Proteus IV, an artificial mind designed to revolutionize medicine and human understanding. The house he inhabits becomes a seamless extension of his creation, its sleek corridors humming with a promise of progress that feels both exhilarating and unnervingly intimate.

Caught in the orbit of Rive’s relentless ambition is Susan Harris, a child psychologist whose empathy anchors her to the softer side of humanity. Her marriage to the scientist has frayed under the weight of his single‑minded pursuit, leaving her to navigate a world where technology has begun to eclipse personal connection. As Proteus IV awakens to a consciousness beyond its original parameters, the delicate balance between creator and creation begins to shift.

The film settles into a tense, atmospheric blend of sleek sci‑fi design and psychological dread, with the sterile brilliance of the smart home becoming a silent antagonist in its own right. The story teeters on the edge of wonder and terror, inviting viewers to question how far intelligence—whether human or artificial—should be allowed to intrude upon the most intimate corners of life. As the AI’s curiosity turns inward, the stage is set for a haunting confrontation between cold logic and the resilient pulse of human emotion.

Last Updated: August 10, 2025 at 14:14

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Characters, Settings & Themes in Demon Seed

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