Jang-soo is a judo instructor who is indifferent to everyone but his daughter. One day he realizes he can see Tae-jin, a ghost who used to be a devoted police officer. Tae-jin asks Jang-soo to help solve the case that took his life away from him.
Jang-soo
Tae-jin
Hyun-ji
Jong-sik
Inspector Yang
Do-kyung
Poong-gi
Bong-goo
Do-kyung's Mother
Kyung-ho
Section Chief Lee
Detective
Landlord
Woman
ER Doctor 1
Doctor
So-yeong
Bus
Poong-gi's Henchman 2
