In drug crime circles, 'Ya-Dang' informants sell criminals' info. Criminals use this to reduce sentences, while law enforcement uses it for arrests. Ya-Dang, police and prosecutors form a key triangle.

Director: Hwang Byeng-Gug

Writer: Hyo-seok Kim

Actors: Kang Ha-neul, Yoo Hae-jin, Park Hae-joon

Production: N/A