Mention the words "Room 237" to a horror fan, and they're apt to prick up their ears immediately. It serves as one of the focal points for Stephen King's novel The Shining as well as Stanley Kubrick's classic 1980 film adaptation. The ghost of a dead woman dwells in the bathroom, and pursues Danny Torrance even after he escapes the Overlook Hotel as recounted in the sequel, Doctor Sleep.
Source：https://www.cbr.com/the-shining-room-237-explained/
