Jin Seo-yeon goes topless in Believer (2018)(0:30)

One of the workers of an exploded drug laboratory falls into the hands of operatives from the drug control department. To avenge his dead mother, he begins to cooperate with the authorities and promises to hand over the entire network, right up to the supreme drug lord, the elusive Mr. Lee. The head of the task force, using an informant, launches a large-scale operation, and now his team will have to infiltrate the largest drug network in the country.