Guimoon: The Lightless Door

A mass killing and subsequent suicide occurred in 1990 at an isolated community center, leaving the building abandoned and haunted by paranormal events. Years later, a paranormal investigator seeking answers about his mother's death during an exorcism enters the facility with three college students. Together, they attempt to uncover the secrets buried within the derelict structure.

This South Korean horror thriller was directed by Sim Deok-geun and written by Lee Jong-ho. The cast features Kim Kang-woo as Do-jin, Kim So-hye as Hye-young, and Lee Jung-hyoung as Tae-hoon, alongside Hong Jin-gi, Um Chae-young, and Song Ji-hyun. Produced by CJ CGV, Jupiter Film, and Ghostpictures, the film has a runtime of 85 minutes.

Audience reception is mixed across different platforms. On IMDb, the film holds a rating of 4.8/10 based on 426 votes, while on TMDB, it has a higher rating of 6.7/10 from 82 votes.