Believer

After a brutal event disrupts his life, Won-ho, a seasoned drug trafficker, shifts allegiances and quietly teams up with Seo Young-rak, a relentless undercover officer. Their uneasy partnership aims to strike at Jin Ha-rim, the enigmatic kingpin who rules a sprawling drug empire. The plan hinges on trust built between two men from opposite sides of the law, each driven by a different motive yet sharing a common goal. As they maneuver through backroom deals, street violence, and rival gangs, they must outsmart both the cartel and the investigators who hunt them. The story tracks how fear, desperation, and ambition reshape loyalties, forcing costly choices that blur the line between justice and revenge. Brian, a ruthless fixer, and Oh Yeon-ok, a calculating figure in the underworld, complicate the mission.

Released in 2018, Believer is directed by Lee Hae-young. The screenplay is a collaboration between Lee Yoon-ho, Wai Ka-Fai, and Yau Nai-Hoi, blending Korean crime storytelling with Asian cinema influences to shape a high tension heist drama.

The film sparked discussions about loyalty and double crossings in the drug war, while delivering style and substance in equal measure. Viewers remember the stark confrontations, the night time cityscapes, and the sharp performances from Cho Jin-woong, Ryu Jun-yeol, and Kim Joo-hyuk as key players.

Critical response highlighted the fast paced tempo, tightly woven plotting, and a morally gray atmosphere that keeps the viewer guessing. Themes of power, corruption, and the costs of crossing lines undercut simple judgments, inviting discussion about what justice looks like when institutions blur.

Box office data is not included in the available information, so the film's commercial performance cannot be assessed here. Believer nonetheless drew audiences with its choreographed action, chemistry among the leads, and a confident behind the camera approach.