Robot Monster (1953)

Plot

Ro-Man, a bizarre alien robot resembling a gorilla in a diving helmet, arrives on Earth with the mission to annihilate humanity. As one of the last six survivors, a human woman captures his heart, creating a conflict between his lethal directives and newfound feelings. Torn between his programmed duty to eliminate her and his burgeoning affection, Ro-Man grapples with his identity and purpose, leading to an unexpected exploration of love and morality amid a looming apocalypse. Can a creature designed for destruction find a reason to protect the very life he was meant to extinguish?