

8.752 minSeason 1 • Episode 10
LatestIn 1997, a mysterious ghost saved humankind and then disappeared. The mysterious ghost appears again 24 years later and helps a serial killer escape. Kim Sae Ha, Jung Sae Byeok and Song Eo Jin pursue the ghost for different reasons.
Writing
Time travel logic that actually checks out (mostly).
Acting
Kim A-joong's thousand-yard stare should be studied.
Direction
Lee Su-yeon treats every frame like evidence.
Creator
Lee Su-yeon
Trivia, insights & behind the scenes
Lee Su-yeon spent 3 years developing the time-travel mechanics to avoid plot holes.
The Grid itself mirrors South Korea's national surveillance anxiety—Big Brother with bureaucratic paperwork.