Door Lock
"In my house a stranger is waiting."
Synopsis
Kyung-min lives alone in a one-room apartment. One day, she finds traces of a stranger breaking into her room and soon a mysterious murder case begins to unravel.
Principal Cast8

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
Media8
Backdrops
Posters
Director

Lee Kwon
Director →
Trailer
Box Office
Certification
NRExternal Links
Reviews1
Door Lock is a Korean thriller adapted from Sleep Tight, shifting the narrative to the victim’s perspective and delivering a tense atmosphere despite a slow start and a predictably weak protagonist. While the mystery keeps viewers engaged with clever misdirection, the portrayal of dismissive and judgmental police adds frustration to the story. The film serves as a stark reminder to stay vigilant and protect personal boundaries in an increasingly unsafe world. Read the full review here: (Indonesian version : alunauwie.com)
Sep 18, 2025
















