- Genre: Thriller, Crime, Mystery
- Country: South Korea
- Audio: Rus. Prof. mnogogolosyy
- Director: Kim Dzhon-min
- Cast: Kim Bom, Pak Son-un, Yun So-i, Li Von-dzhon, Kim Tkhe-khun, Lim Khyon-son, Kim Min-dzhun, Kan Son-dzhin, Li Gyon-yon, Li Dzhi-yon
- Description: To catch dangerous criminals, an undercover detective division is formed. Their methods include wiretapping telephone conversations, monitoring networks, and deep infiltration into criminal groups....