The Backrooms grossed approximately $393 million worldwide on a reported budget of approximately ten million dollars. It is the highest-grossing film in A24's history, more than twice the studio's previous record. The director is Kane Parsons, who is twenty-one years old, who lives in Petaluma, California, who taught himself 3D animation on a used laptop he received as a child, and who made the original Backrooms YouTube series at sixteen using Blender, a free piece of software.
A24 has now offered him a reported sixty-five million dollar first-look deal, the largest in the studio's history. Warner Bros. and Universal both competed aggressively for his services. He chose A24 anyway.
None of this is what the Backrooms mythology was designed to produce.
Where it came from
On May 12, 2019, an anonymous user on 4chan's paranormal board posted a photograph of a large empty room with mono-yellow walls, stained commercial carpet, and fluorescent lighting. Someone added a description. This is that description, in its entirety:
"If you're not careful and you noclip out of reality in the wrong areas, you'll end up in the Backrooms, where it's nothing but the stink of old moist carpet, the madness of mono-yellow, the endless background noise of fluorescent lights at maximum hum-buzz, and approximately six hundred million square miles of randomly segmented empty rooms to be trapped in. God save you if you hear something wandering around nearby, because it sure as hell has heard you."
That was the complete post: one photograph and one paragraph from an anonymous user with no name attached, no follow-up, and no sequel, and then the thread moved on.
Within three weeks, the first Backrooms wiki was live. Within months, r/backrooms had thousands of posts. Writers began building "Levels," cataloguing "Entities," and publishing first-person accounts of survival. The mythology expanded the same way the SCP Foundation had: anonymously, collaboratively, with no central authority and no binding canon. One faction eventually broke off to form a separate community because the growing complexity betrayed the original austere image. Nobody could agree on what the Backrooms actually was, because the Backrooms was never designed to be agreed upon.
This is what I find most interesting about the film, and I think it is what most reviews have missed. The Backrooms mythology is not just a horror setting. It is a specific argument about how horror works. The original post has no monster, no protagonist, no narrative. What it has is a space: infinite, featureless, inescapable, wrong. The horror is the absence of explanation. The wrongness cannot be named because naming it would reduce it. This is the precise mechanism that liminal space horror exploits, and the Backrooms post was its purest expression.
Liminal spaces are environments built for transit: hallways, airports, stairwells, empty malls, parking structures at three in the morning. They become uncanny when stripped of people because the brain expects them to be occupied and receives no occupant. The mismatch does not resolve. What the Backrooms added was infinity and repetition, which removed the possibility of exit, and a smell and a sound, which made the abstract physical. The six hundred million square miles is not there for scale. It is there to eliminate hope.
The community built on top of this for three years. By 2022, the mythology encompassed hundreds of named levels and dozens of entities, authored by thousands of contributors. And then Kane Parsons uploaded a video.
What he actually made
I had watched the YouTube series before the film came out. The first video is seven minutes long. Parsons shot it himself, processed it in Blender and After Effects, and published it under the handle Kane Pixels. It has over ninety million views. The whole channel, across twenty-five episodes, has over four hundred million views.
What he understood that most Backrooms content did not is restraint. He did not explain the Backrooms. He did not build a taxonomy or a lore document. Or rather, he built a seventy-page lore document and then, as he said in a pre-release interview, chose not to use most of it. "I don't like drowning people in lore and mythology," he said. "I think it's an irresponsible creative choice."
That is a remarkable thing for a twenty-one-year-old to say about a mythology built entirely from other people's lore accumulation.
The series introduced Async, a research institute that has been covertly mapping the Backrooms since at least 1989. It introduced Still Lifes, entities the Backrooms creates from memory, distorted copies of real people with warped features. It introduced a specific corporate culpability that the original post did not have. These additions are not neutral. They gave the mythology an author, a cause, and a bureaucratic antagonist. They were a claim about what the Backrooms means.
A24 came to him after the first videos went viral. He was sixteen when he uploaded, seventeen when he was hired.
What the film does
The film's protagonist is Clark, played by Chiwetel Ejiofor, a furniture store owner whose life is falling apart. His therapist is Dr. Mary Kline, played by Renate Reinsve. Clark descends into the Backrooms through his store's basement. Mary follows him in.
The film is two things simultaneously. As an atmospheric experience, it is extraordinary. Owen Gleiberman at Variety called Parsons "a wizard of mood who shares the early David Lynch's love of industrial cosmic sound design." Amy Nicholson at the Los Angeles Times described it as "a surrealist painting in motion, the equivalent of staring at Salvador Dali's wasteland of melting clocks until it makes gut-sense." The opening seven minutes are as good as anything in recent horror.
What the film is doing thematically is more complicated and, I think, more interesting than most of the reviews engaged with. The central antagonist is a Still Life entity modeled on Clark, a distorted copy pulled from his own past, rendering the worst version of him permanent and monstrous. The film uses Still Lifes as an externalization of repressed identity: the Backrooms does not just trap you, it reflects you back at yourself in ways you cannot control.
The film ends on deliberate ambiguity. Mary's fate after her encounter with Async is not confirmed. The final sequence suggests she may not have fully escaped what the Backrooms does to the people it processes. Whether the Mary who walked out of the space is the original is not resolved. The film ends on that question.
I do not think this ambiguity is evasion. I think it is the most honest conclusion available to a film that is built on a mythology designed to resist resolution. Parsons cannot end the Backrooms because ending it would betray what the Backrooms is. The ambiguity is, in this reading, the most faithful thing the film does.
The thing no review said
Here is what I keep thinking about.
The Backrooms was built to have no author. Its horror depends on the absence of an author. An authorless space has no purpose, which means there is no escape route, because escape routes require someone to have designed them in. The moment you give the Backrooms a cause, a corporate entity that created it by accident in 1989, a researcher who has mapped it, a director who has a seventy-page lore document, you have given it an author. An authored space can, in principle, be understood. Understanding is the first step to escape.
Kane Parsons is aware of this problem. The film does not resolve Async's agenda. The ending does not confirm whether Mary survived. He preserved ambiguity where he could. But the film exists. It has a canon. He has signed a sixty-five million dollar deal to extend that canon. The collective, anonymous, leaderless horror mythology now has a named director and a sequel in development at a studio that owns the rights.
What the Backrooms described was a place you fell into without warning, without explanation, and without any assurance that anyone knew where you were. The mythology spread because people recognized that feeling, the feeling of finding yourself somewhere you do not understand with no map and no exit. That feeling is not specific to supernatural fiction. It is available to anyone who has watched a system close around them without being able to identify who designed it.
Async is a corporation that built the Backrooms by accident and has been exploiting it for decades. Mary may or may not have escaped it. The film does not say.
I am not sure that is an accident.
What happens next
The Backrooms begins streaming on HBO Max on September 25. If you have not seen it, the theatrical window is the better version: the extended cut adds more than fifteen minutes of additional footage and is currently on digital. The HBO Max premiere will introduce a new audience to a film that rewards attention and punishes impatience.
Backrooms 2 is confirmed. Kane Parsons signed with A24 in the first week of September 2026. No production timeline has been announced. The deal reportedly covers at least one additional original project beyond the sequel.
I will watch the sequel with the same interest I had for this film, and the same specific anxiety. The further the Backrooms moves from its 2019 source post, the more the mythology belongs to one person's vision rather than to the collective hallucination that made it terrifying in the first place. That may be unavoidable. It may be the cost of the film existing at all.
The original post had no sequel. Nobody knew who wrote it. The stink of old moist carpet, the madness of mono-yellow: those details came from nowhere and were attributed to no one. For three years, that was enough to fill six hundred million square miles.
FAQ
What is The Backrooms? The Backrooms is a 2026 horror film directed by Kane Parsons and distributed by A24. It is based on Parsons' YouTube web series, which itself was based on an anonymous 2019 4chan post describing an infinite liminal space accessible by "noclipping out of reality." The film grossed approximately $393 million worldwide, the highest total in A24 history.
What is the Backrooms mythology? The Backrooms originated as an anonymous 4chan post in May 2019, describing an infinite space of yellow-walled rooms accessible by accidentally slipping through reality. The mythology expanded through collaborative anonymous writing on Reddit and fan wikis, with no official author or canon, encompassing hundreds of named levels and dozens of entities.
Who is Kane Parsons? Kane Parsons is a twenty-one-year-old filmmaker from Petaluma, California. He began his Backrooms YouTube web series on January 7, 2022 at age sixteen, using Blender and After Effects, with no crew or formal training. The series has over four hundred million views. A24 hired him to direct the feature film when he was seventeen.
What happens at the end of The Backrooms? The ending is deliberately ambiguous. Mary's fate after her encounter with Async is not confirmed. The final sequence raises the question of whether the Mary who walked out of the Backrooms is the original or a distorted copy the space created. The film does not resolve this.
What is Async in The Backrooms? Async is a research institute that has been covertly mapping the Backrooms since at least 1989, when a test of their Low-Proximity Magnetic Distortion System during the Loma Prieta earthquake caused the Backrooms to intersect with accessible reality. Their full agenda remains unknown at the end of the film.
What are Still Lifes in The Backrooms? Still Lifes are entities the Backrooms creates by replicating people from memory: distorted copies with warped faces and bodies, passive or violent. The film's primary antagonist is a Still Life modeled on Clark himself, representing a monstrous version of his own past.
Is there a Backrooms sequel? Yes. Kane Parsons signed with A24 in September 2026 to direct Backrooms 2. No release date or production timeline has been announced. The deal also reportedly covers at least one additional original project.
Where can I watch The Backrooms? The Backrooms begins streaming on HBO Max on September 25, 2026. It is also available on digital and VOD as of July 14, 2026.
The Backrooms is streaming on HBO Max from September 25. Tracking what arrives next at incoming.to.