'Backrooms,' a new horror film inspired by a 4chan post, has left viewers unsettled after its trailer amassed over 18 million views on YouTube. The film stars Chiwetel Ejiofor as Clark, a furniture store owner who discovers a hidden backroom in his shop that defies the laws of physics. Alongside his friends, Clark explores these bizarre rooms, documenting their findings, but soon realizes they may not be alone. The film is directed by Kane Parsons, who also created the original web series. The concept originated from a disturbing 2019 post on 4chan's paranormal board, showcasing eerie images of vacant spaces. The film aims to capture the unsettling atmosphere of these 'liminal spaces' and is set to release in theaters on May 29.