Movie guide
Guimoon: The Lightless Door (2021): movie guide
Guimoon: The Lightless Door (2021) is a Horror, Thriller running about 85 minutes. It holds a TMDB score of 6.7/10 from 82 votes. Notable cast includes Kim Kang-woo, Kim So-hye, Lee Jung-hyung, Hong Jin-gi. Cinema Box covers trailers, cast, and details for discovery — not full streaming.
- Released: 2021-08-25
- Runtime: 85 min
- TMDB: 6.7/10
- Genres: Horror, Thriller
Last updated: 2026-11-11 · First listed: 2021-08-25
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What is Guimoon: The Lightless Door about?
In 1990, at a secluded community center, the custodian murders all the guest lodgers and kills himself. Ever since, on every Old Year's Night, paranormal events begin to take place within the building. Eventually, the center is shut down and left abandoned for years. A renowned paranormal investigator who had lost his mother during an exorcism and three college students who heard about the rumor of the unexplained phenomena heads over to the building, resolved to uncover the buried secret.
Cast highlights
Guimoon: The Lightless Door features Kim Kang-woo, Kim So-hye, Lee Jung-hyung, Hong Jin-gi, Um Chae-young, Song Ji-hyun. Open the Cinema Box title page for the full cast list and character credits.
Key facts
Release date: 2021-08-25. Runtime: 85 minutes. TMDB score: 6.7/10 (82 votes). Genres: Horror, Thriller. Original language: ko. Status: Released.
Discover Guimoon: The Lightless Door on Cinema Box
Cinema Box is a movie and TV discovery app for Android. Use it to browse Guimoon: The Lightless Door, watch official trailers when available, save titles to your list, and plan what to watch — without hosting or streaming full films.
Frequently asked questions
- What genre is Guimoon: The Lightless Door?
- Guimoon: The Lightless Door is listed as Horror, Thriller on TMDB.
- How long is Guimoon: The Lightless Door?
- Guimoon: The Lightless Door runs about 85 minutes.
- Who stars in Guimoon: The Lightless Door?
- Cast highlights include Kim Kang-woo, Kim So-hye, Lee Jung-hyung, Hong Jin-gi, Um Chae-young, Song Ji-hyun.
- Does Cinema Box stream Guimoon: The Lightless Door?
- No. Cinema Box is discovery-only — trailers, details, ratings, and watchlists. It does not host or stream full movies.
