Backrooms is a 2026 American psychological horror film directed and co-scored by Kane Parsons, and written by Will Soodik. It is based on Parsons's web series which was inspired by the "Backrooms" creepypasta. In the film, Clark, a furniture store owner, and his therapist Mary discover a dimension of seemingly endless liminal spaces accessed through the store's basement. Mark Duplass, Finn Bennett, and Lukita Maxwell also star.

Summary from Wikipedia (CC BY-SA).