((exclusive)) - Isaidub I Saw The Devil

The story begins with tragedy: a secret agent, Kim Soo-hyun, has his pregnant fiancée brutally murdered by a remorseless serial killer, Kyung-chul. Consumed by a desire for vengeance, Soo-hyun tracks down the killer but refuses to kill him outright. Instead, he embeds a tracking device in him, turning their confrontation into a violent cat-and-mouse game where the lines between hero and monster become horrifyingly blurred.

Instead of handing Kyung-chul over to the police or killing him outright, Soo-hyeon decides to inflict a prolonged psychological and physical torture. He implants a tracking device in the killer, beats him close to death, releases him, and hunts him down again in a relentless cycle of capture and release. Exploring the Theme of Monstrosity isaidub i saw the devil