'Backrooms' earned $38 million on Friday, already shattering the record for A24's best opening weekend.

The movie, which hits theaters Friday, is also produced by genre leaders James Wan and Osgood Perkins, and stars Chiwetel Ejiofor, Renate Reinsve and Mark Duplass.

“Backrooms,” director Kane Parsons’ horror thriller based on his hit YouTube web series, is new in theaters this weekend and is winning over most Rotten Tomatoes critics.