I Saw the Devil

I Saw the Devil is a gripping South Korean action-thriller that delves into the depths of vengeance and morality. The story follows Kim Soo-hyun (Lee Byung-hun), a National Intelligence Service agent, whose fiancée is brutally murdered by a sadistic serial killer, Jang Kyung-chul (Choi Min-sik). Consumed by grief and rage, Kim embarks on a relentless quest for revenge. However, instead of immediately killing Jang, he captures and releases him repeatedly, subjecting him to a series of torturous encounters. This cat-and-mouse game blurs the lines between justice and monstrosity, exploring the psychological toll of vengeance. The film is renowned for its intense action sequences, psychological depth, and haunting portrayal of the human psyche. I Saw the Devil - official trailer Watch I Saw the Devil on Amazon Prime Video