Go Seo-hee

During the late 1980s, two detectives in rural South Korea attempt to solve a series of gruesome rape-and-murders of young women that leave the community terrified using limited resources and outdated methods. 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. They then attempt to piece together the clues in this thriller based on true events.

In the spring of 1999, a group of old friends gather to celebrate their 20 year reunion. Among the group is Yeong-ho, a cold, unhappy man, whose demeanor puts a damper on the festivities. The seriousness of Yeong-ho's depression becomes apparent when he climbs a railroad bridge and looks like he might jump. At this crucial moment, memories of seven crucial episodes from Yeong-ho's past flood his mind.