Memories of Murder movie plot

In 1986, a woman's body was found on the side of a field in Hwaseong County, Gyeonggi-do, South Korea. The body was already stinking. The only thing that can be confirmed is that the woman's body was raped before her death. Two months later, homicides with the same technique appeared one after another. However, the police have no idea about this kind of serial murders, causing panic. As a result, the police decided to set up an investigation team to investigate this series of difficult cases. Park bucket full of small town policeand Seoul came Sutai Yuntook over the case, a serious lack of clues so that inexperienced Park bucket full partner and Cao detectivejust by rowdy Extorting a confession and inferring from the sixth sense, the suspect was beaten into tricks several times. Detective Su was objective and calm. Based on rational analysis, several times of suspicion were eliminated. In order to prove and overthrow conflicts within the police, innocent women were still brutally killed one after another, so they had to reach a consensus and cooperate together. Agent Park found the suspect's semen at the scene, but no pubic hair, so he judged that the suspect was a man without pubic hair. On the other hand, Agent Su also found that the victims were all wearing red clothes on rainy days. Therefore, the investigative team decided to choose a rainy day and send an undercover agent to lure the assailant. On the next day, it was another woman who died. At this time, a young manwho fits the characteristics of the crime becomes the biggest suspect. The police nervously locks him in. At the same time, the DNA test report is sent to the United States. However, the case does not stop here.