I Saw the Devil

In Na Hong-jin's "I Saw the Devil," Kyung-chul is a sadistic serial killer who preys on the innocent, while Soo-hyeon, a former intelligence officer, swears revenge after Kyung-chul murders his fiancée. This harrowing cat-and-mouse game sees Soo-hyeon descend into a moral abyss, matching his nemesis in brutality. The film is a relentless, often nihilistic exploration of obsession and retribution, where the line between hunter and hunted blurs, leaving both men forever entangled in a cycle of escalating violence.