- HD 1080
- Runtime: 116m.
- Status: Released
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- Languages: ko
- Country: South Korea
- Director: Park Ji-wan
- Stars: Kim Hye-soo, Lee Jung-eun, Roh Jeong-eui, Kim Sun-young, Lee Sang-yeob
- keywords: detective
- Production_studio: Warner Bros. Korea, Oscar 10 Studio, Story Pong
- Slogan: My life has begun again.
- The The Day I Died: Unclosed Case is featured in the top rankings of 2020
- #36 in Top Crime Movies of 2020
- #23 in Top Mystery Movies of 2020
The detective Hyun-soo tries to track down a girl who disappeared off of a cliff during a stormy night.