In 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.
Kim Sae-ha
Jung Sae-byeok
Ghost
Song Eo-jin
Choi Sun-wool
Kim Ma-nok
Im Ji-Yoo
Han Wi Han
Chae Jong-Yi
Jo Heung-Shik
Go Han Seung
[Detective]
