Some nightmares are born from campfire tales, while others emerge from the dark corners of the internet at 3 a.m. The Backrooms phenomenon definitely belongs to the latter. What started as a creepy image of endless yellow rooms, buzzing fluorescent lights, and damp carpet has evolved into one of the web's most unsettling modern horror concepts. Now, A24 is bringing this liminal terror to the big screen.
Mark your calendars: Backrooms opens in theaters on May 29, 2026. Directed by Kane Parsons, the filmmaker behind the wildly popular YouTube series, the film follows a therapist whose patient vanishes through a strange doorway in a furniture showroom's basement. To save him, she must enter a dimension beyond reality—a decision that screams classic horror-movie logic.
The cast is stacked with talent: Chiwetel Ejiofor (12 Years a Slave, The Martian) plays Clark, Renate Reinsve (The Worst Person in the World) portrays Dr. Mary Kline, and Mark Duplass (Creep) joins alongside Finn Bennett (True Detective: Night Country), Lukita Maxwell (Shrinking), and Avan Jogia (Zombieland: Double Tap). The screenplay comes from Will Soodik, with producers including James Wan, Shawn Levy, Osgood Perkins, and Peter Chernin.
If you're a fan of A24's signature brand of psychological horror, this one is already generating buzz. The studio has a knack for turning unsettling concepts into cinematic gold, and Backrooms looks to continue that tradition. For more on their scariest offerings, check out A24's Scariest Horror Movies That Will Haunt Your Nightmares.
What Is 'Backrooms' Based On?
The concept is deceptively simple: imagine "no-clipping" out of reality, like a glitch in a video game, and ending up in an infinite maze of empty, yellowish offices. The original fear lies in being trapped in a liminal space—a place that looks familiar (an office, hallway, or hotel corridor) but has no exit, no logic, and no help coming. It's like a really bad job interview that never ends.
This viral horror phenomenon started with a single image and grew into a sprawling internet myth. Now, with A24's production values and Kane Parsons' vision, it promises to deliver a truly immersive nightmare. If you're craving more horror that pushes boundaries, don't miss 10 Forgotten Horror Gems That Deserve Way More Love, Ranked.
With a release date just over a month away, anticipation is building. Will Backrooms become the year's most terrifying horror movie? Only time—and those yellow-lit corridors—will tell. For now, prepare to step into the unknown on May 29, 2026.
