The origin of 'Backrooms' dates back to an anonymous post describing a disturbing extradimensional space, similar to a childhood church's storage room. This concept, free of copyright, quickly became a collaborative fiction project, reminiscent of the SCP Foundation. Countless interpretations of the 'lore' have emerged, largely fueled by the imagination of teenagers on Fandom wikis. The collaborative nature of the internet has allowed this horror to expand and evolve in unexpected ways.
The basic premise of 'Backrooms' is the existence of an infinite labyrinth of abandoned offices and hallways, where monotony and desolation generate an atmosphere of psychological terror. The lack of a canonical narrative has allowed each creator to contribute their own vision, enriching (or sometimes diluting) the original myth. A24's film seeks to unify these diverse interpretations into a cohesive cinematic experience.