What is "Room 237" really about? On the surface, Rodney Ascher's documentary exhibits the theories a few obsessive fans have put forward to reveal what they think Stanley Kubrick's "The Shining" is really about. According to them, Kubrick stashed "hidden meanings" in the vacancies, hallways, ballrooms, bathrooms, walk-in storage areas and hedge-mazes of the Overlook Hotel in his 1980 horror film.