The story follows an alien named (played by Richard Kiel, famously known as "Jaws" from the James Bond franchise), who is sent to Earth by an intergalactic council. His mission is to establish a colony by replacing key humans with android duplicates to facilitate a global takeover.

The film is arguably most famous for being featured in of MST3K.

: The film utilizes classic 60s tropes, including alien spacecraft that look like Christmas ornaments and android heads that shatter like porcelain. Mystery Science Theater 3000 (MST3K)

" The Human Duplicators " is a 1965 science fiction film directed by Hugo Grimaldi. It is widely recognized for its low-budget effects and its appearance on the cult television series (MST3K). Core Plot & Themes

: Reviewers and fans often highlight the absurdly deep and "seductive" voice Kiel uses for Kolos and the slow-paced, often "bland" nature of the film that makes it a perfect target for riffing.

: Kolos’s cold mission is complicated when his heart is softened by the kindness of a beautiful blind woman, Lisa Dornheimer, whose father's lab he is using.