Memories of Murder (2003)

Investigating a wave of brutal killings in rural South Korea, detectives Park and Seo respond to their own procedural helplessness with coercive beatings, fabricated evidence, and reckless tunnel vision. Their frantic bungling not only destroys the lives of innocent suspects and drives a vulnerable young witness into the path of an oncoming train, but also leaves the real predator free to butcher further victims in the rain. As their initial bravado decays into haunted despair, the officers realise their clumsy intervention only compounded the province's agony.