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.
Ma Dong-seok
Kim Young-kwang
Lee You-young
Choi Gwi-hwa
Ju Jin-mo
Choi Yu-ri
Heo Jae-ho
Go Gyu-pil
Bae Jung-hwa
Kang Seung-wan
Yoon Hee-won
Han Soo-hyun
Lee Young-suk
Ye Jung-hwa
Cha Soon-hyeong
Kim Seon-mun