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.
Unfortunately the movie Door Lock is not yet available on HBO Max.
| Visual Effects | Jeon Gun-ik | Special Effects Supervisor |
| Costume & Make-Up | Kim Da-jung | Costume Design |
| Lighting | Lee Je-woo | Lighting Director |
| Production | Cho Byeong-yeon | Executive Producer |
| Writing | Park Jeong-hui | Writer |
| Crew | Yoo Mi-jin | Stunts |
| Production | Kim Hee-gyeong | Production Manager |
| Art | Lee Tae-wook | Special Props |
| Directing | Lee Kwon | Director |
| Writing | Lee Kwon | Screenplay |
| Camera | Park Jung-hun | Director of Photography |
| Production | Yi Jae-min | Producer |
| Editing | Kim Sun-min | Editor |
| Sound | Gong Tae-won | Sound Supervisor |
| Sound | Dalpalan | Original Music Composer |
| Costume & Make-Up | Kwon Su-kyung | Makeup & Hair |
| Art | Lee Na-gyeom | Production Design |
| Art | You Cheong | Props |
| Camera | Ha Jin-kyung | Camera Operator |
