Yadang: The Snitch

Lee Gang-soo, a man who was previously imprisoned under false accusations, receives a life-altering offer from an ambitious prosecutor named Ku Gwan-hee. In exchange for a reduced sentence and legal protection, Gang-soo becomes a 'yadang'—a professional informant operating between the drug underworld and law enforcement. As Gang-soo helps Gwan-hee achieve high-profile results and climb the prosecutorial ladder, a determined narcotics detective named Oh Sang-jae begins to suspect the corrupt nature of their partnership. The trio becomes entangled in a dangerous conspiracy involving elite VIPs and a massive new drug trafficking network that threatens to consume them all.