Backrooms: Release date news, plot, streaming details and more

The A24 horror film Backrooms has secured a May 29, 2026 release date in U.S. theaters. The studio page lists Kane Parsons as the director, credits Will Soodik as the writer, and names Chiwetel Ejiofor and Renate Reinsve as the lead stars. It also keeps the premise blunt, saying that a strange doorway appears in the basement of a furniture showroom.

That short setup is the cleanest way into Backrooms because the movie is based on an internet horror concept that can sound strange when overexplained. The space is a maze of empty rooms, yellow walls, buzzing lights, and endless wrong turns. The movie will give that strange idea a more direct story. Clark, played by Ejiofor, runs a furniture store and finds the doorway. Mary Kline, played by Reinsve, is his therapist and enters the space after he vanishes.

For viewers who are waiting for an e-release, no streaming update has been made yet. Though Apple TV already has a listing with trailers, cast details, an R rating, and a 1 hour 50 minute runtime, nothing has been officially confirmed so far. That means viewers should treat Backrooms as a theatrical release for now.

A later HBO Max release is possible in the U.S. because Warner Bros. Discovery renewed its A24 pay-one deal, but no streaming launch date has been announced yet. Early reviews are also arriving before opening weekend, with AP News already treating the movie as the finished big-screen version of the internet-born horror idea, which would be quite interesting to watch.

What is Backrooms about and who is in the cast?

The story focuses on Clark after he finds a doorway in the basement of his furniture showroom. That door leads into a place that does not behave like a normal building. The rooms stretch on, the lighting feels sickly, and the space seems empty.

That is why Backrooms may work even for viewers who never watched the original shorts. The story has a direct and straightforward approach, but the fear comes from how normal the rooms look. A hallway, a showroom corner, or a fake living room can suddenly feel like a trap. Mary Kline is pulled into the danger when Clark disappears, which gives the film a clear search narrative inside the larger nightmare.

The cast is led by Chiwetel Ejiofor as Clark and Renate Reinsve as Mary Kline. Apple TV also lists Mark Duplass, Finn Bennett, Lukita Maxwell, Avan Jogia, Krista Kosonen, and Philip Granger in the cast.

The bigger creative hook is Kane Parsons. He first made the idea famous through his YouTube work as Kane Pixels, then moved from online horror shorts to an A24 feature while still very young. Parsons wanted a simple story without stripping away the lore that fans care about. That is the balance Backrooms has to strike: clear enough for new viewers, yet strange enough for the people who already know why those empty rooms feel wrong.