Speciali
/
Specials
/
Especiais
/
Extras
/
Épisodes spéciaux
/
Especiales
actor:
Lee Je-hoon
/
Kim Hye-soo
/
Cho Jin-woong
/
Jung Hae-kyun
/
Kim Won-hae
…
number of episodes: 3
overview
Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.