The Lake of that Day
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Contents
Details
- Title: 그날의 호수 / Geunaleui Hosu
- Genre: Mystery
- Episodes: 1
- Broadcast network: tvN / TVING
- Broadcast period: 2025-Dec-08
- Air time: Monday 20:20
- Related TV shows: O'PENing
Synopsis
During a ten-minute absence from PE class, Hosu—who had a congenital heart condition—collapses and dies. Though ruled an accident, Sung Yun recalls seeing Jae Woo at the scene and senses something amiss. As she follows the conflicting memories surrounding Ho Soo's death, the truth grows more unsettling—until an unexpected encounter leads her to the shocking truth of that day.
User/Viewer Ratings
Cast
- Main Cast
- Park Yoo Rim as Mo Sung Yun (late 20s)
- Cha Mi Kyung as Kim Moon Jung (late 60s)
- Yoo Ji Wan (유지완) as Lee Ho Soo
- Kim Ye Kyum (김예겸) as Im Jae Woo
- Lee Chun Moo as Oh Won Suk
- Supporting casts
- Ahn Nae Sang as pastor
- Jung Hee Tae as Jae Woo's father
- Heo Ji Na as Jae Woo's mother
- Kim Joong Ki as Ho Soo's father
Production Credits
- Production Company: Studio Dragon, BY4M STUDIO (바이포엠스튜디오), Studio Double M (스튜디오더블엠)
- Director: Lee Myung Jin (이명진)
- Screenwriter: Sung Da Hye (성다혜)
Episode Ratings
| Date | Episode | Nielsen Korea (%) | |
|---|---|---|---|
| Nationwide | Seoul | ||
| 2025-12-08 | 1 | 1.9 | 2.1 |
Source: Nielsen Korea
Notes
- Part of CJ E&M's O'PENing series.

