In 1986, Park (Song Kang-ho) and Cho (Kim Roi-ha) are two simple-minded detectives assigned to a double murder investigation in a South Korean province. But when the murderer strikes several more times with the same pattern, the detectives realize that they are chasing the country’s first documented serial killer. Relying on only their basic skills and tools, Park and Jo attempt to piece together the clues and solve the case in this thriller based on true events.

“How the hell does a film this tonally out there, with characters this lunkheaded and at times even cruel and hateful, manage to be so indescribably moving?” Bilge Ebiri, The Village Voice

“Bong elevates every scene with his unbelievably assured filmmaking.” Brian Tallerico, RogerEbert.com