Strange Factories is a 2013 British experimental horror film written, directed by John Harrigan and produced by the British immersive theatre and production collective FoolishPeople.

As he continues through the landscape, he begins to uncover a bizarre cult under the hallucinatory influence of a nearby factory, and a sinister pact he once made with its owner.

All the while he is tormented by visions and a strange humming sound that emanates from the factory.

Ain't It Cool News gave the film a positive review, writing, "Strange Factories may not be for the more literal-minded of horror fans.

"[2] Sarah Stewart from The Londonist praised the film's atmosphere, suspense, and innovative blending of celluloid and live-action performance.