The Demon (rereleased in 1985 as Midnight Caller) is a South African slasher film starring Cameron Mitchell and Jennifer Holmes and directed by Percival Rubens.

Fourteen-year-old Emily Parker is kidnapped from her rural home and murdered by a faceless, heavy-breathing maniac with black leather razor-blade tipped gloves.

The maniac kills the truck driver, steals his cash, and takes up residence at "Baron Court", a shady tenement hotel in Johannesburg's Doornfontein neighbourhood.

Joan Parker, the distraught mother, needs to know whether Emily is alive or dead, but her husband is preoccupied with revenge and implores Carson to find the man responsible.

Meanwhile, for reasons left unclear, the maniac fixates on a young, American teacher, Mary Jones, who shares a two-story bungalow in Johannesburg's Saxonwold neighbourhood with her 18-year-old Afrikaner cousin, Jo.

However, Joan accuses Carson of masterminding the entire thing—the kidnapping and murder of her daughter, her husband's death—as a way to further perpetuate his own career as a hoax psychic.

That night, Mary and Jo go on respective dates with their significant others while the newly christened "Demon" prepares for his final onslaught.

When that proves futile, she locks herself in a bathroom and devises a booby trap to catch and kill the Demon using a shower nozzle, a bottle of shampoo, and a pair of scissors.

[citation needed] The Demon was distributed to some theaters under the title Midnight Caller in 1985, with an advertisement in the Pittsburgh Post-Gazette showing that the movie premiered in their area on March 15, 1985.

[13] Fred Beldin of AllMovie gave the film a negative review, calling it "dull, dimly lit slasher nonsense".