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.
| Writing | Kim Sung-jin | Screenplay |
| Art | Lee Jae-sung | Production Design |
| Costume & Make-Up | Kim Kyeong-mi | Costume Design |
| Writing | Bae Se-young | Adaptation |
| Costume & Make-Up | Nam Ji-soo | Makeup & Hair |
| Sound | Kim Pil-soo | Sound Supervisor |
| Costume & Make-Up | Kim Hyun-joo | Costume Designer |
| Editing | Steve M. Choe | Editor |
| Production | Jay Song | Executive Producer |
| Directing | Jo Won-hee | Director |
| Production | Kim Sung-jin | Executive Producer |
| Camera | Ha Gyeong-ho | Director of Photography |
| Sound | Chung Min-joo | Sound Supervisor |
| Editing | Park Kyoung-suk | Editor |
| Art | Kim Nam-ho | Set Decoration |
| Crew | Kim Seon-wung | Stunts |
| Editing | Kim Yeol-hoe | Digital Intermediate |
| Crew | Ryu Seong-cheol | Stunts |
| Sound | Mok Young-jin | Music |
| Visual Effects | Song Seung-whan | VFX Supervisor |
| Art | Lee Sang-hun | Props |
| Lighting | Shin Tae-seop | Lighting Director |
| Camera | Jeong Kyung-hwa | Still Photographer |
| Crew | Yun Min-gyu | Stunts |