Door Lock
"In my house a stranger is waiting."
Kyung-min, who rents a small one room apartment, keeps to herself and tries to live quietly. One ordinary day she discovers signs that a stranger has slipped into her space, leaving behind unsettling clues and a sense that someone has been watching. What begins as a curious mystery about... Read more
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Streaming availability last verified: February 23, 2026
About Door Lock
Kyung-min, who rents a small one room apartment, keeps to herself and tries to live quietly. One ordinary day she discovers signs that a stranger has slipped into her space, leaving behind unsettling clues and a sense that someone has been watching. What begins as a curious mystery about misplaced belongings soon widens into a murder case that feels intimately connected to her own life. As investigators peel back the layers, the line between victim and suspect becomes blurred and the apartment turns into a maze where every sound might hide a motive. The film sustains tension through pacing and a restrained, observant mood rather than flashy twists, letting details accumulate until doubt becomes the drama's engine.
Directed by Lee Kwon, Door Lock stars Gong Hyo-jin and is based on a story by Park Jeong-hui. Released in 2018, this Korean thriller emphasizes atmosphere and character over grand spectacle, with a production design focusing on sound and performance.
Reception centers on its restrained mood and a close attention to psychological detail. The film holds a 7.44 out of 10 score from 159 votes, suggesting interest among genre fans. Themes of privacy invasion, memory, and the fragility of domestic space are explored without heavy handed exposition for many viewers.
There are no major awards listed for Door Lock. The film seems to have flown under the radar of mainstream ceremonies, drawing attention mainly from fans of tense domestic thrillers and viewers who respond to quiet atmospheric filmmaking. Its restrained approach may explain the lack of nominations.
It has not sparked broad cultural dialogue or well known quotes, and its most memorable moments remain within the experience of watching rather than becoming memes or parodied scenes. The film may appeal to listeners who enjoy intimate, unhurried suspense, rather than crowd pleasing finales these days.
Details
- Release Date
- December 05, 2018
- Runtime
- 1h 42m
- Rating
- NR
- User Ratings
- 166 votes
- Type
- Movie
- Genres
- Thriller, Crime, Mystery
- Country
- South Korea
- Studio
- Plus M Entertainment +1 more
- Box Office
- $11
- External Links
- View on IMDB
Official Trailer
Cast
Gong Hyo-jin
Jo Kyeong-min
Kim Ye-won
Oh Hyo-joo
Kim Seung-o
Detective Lee
Jo Bok-rae
Kim Gi-jeong
Lee Ga-sub
Han Dong-hoon
Lee Chun-hee
Kim Sung-ho
Han Ji-eun
Kang Seung-hye
Kim Jae-hwa
Assistant Manager Park
Kim Kwang-kyu
Deputy Head of Department
Cha Yeob
Detective
Director: Lee Kwon
Written by: Park Jeong-hui