Navigating both the criminal underworld and law enforcement agencies, professional snitches called "yadang" provide covert information about the drug world to prosecutors and police. When a drug bust at a party attended by high-profile second-generation VIPs entangles those involved into a dangerous conspiracy, a seasoned yadang must do everything in his power not just to make it out on top, but alive.

Kang Ha-neul
as Kang-soo

Yoo Hai-jin
as Koo Gwan-hee

Park Hae-joon
as Oh Sang-jae

Ryu Kyung-soo
as Cho Hoon

Chae Won-been
as Uhm Su-jin

You Seong-joo
as Yeom Tae-soo

Kim Keum-soon
as Kim Hak-nam

Lim Sung-kyun
as Chang-rak

Cho Wan-ki
as Manager Oh

Kwak Ja-hyung
as Detective Park
CinemaSerf
I must admit I didn’t quite understand just what was going on at the start of this. “Lee Kang-su” (Kang Ha-neul) is a brash and confident young man who manages to get information on drug dealers which he then passes on to the police and/or the public prosecutors in return for a cut and them getting ...