A kidnapper disappeared 15 years ago without a trace. Five days before the case’s statute of limitations expires, someone anonymously leaves a flower at the crime scene. A few days later, another kidnapping takes place using the same method on a similar target.

On the day the 15-year statute of limitations expired on a high profile serial murder case that claimed the lives of 10 women, a family member of the victim throws himself off the building in front of Choi Hyeong-goo, the detective in charge of the case. Two years later, a man called Lee Doo-seok publishes a book titled “I am the Murderer” claiming responsibility for the murders that took place 17 years ago. His book becomes a bestseller because of the author’s charming looks and his vivid depiction of the crime. The detective and the self-proclaimed murderer meet face to face on a television debate show. Believing that Lee is nothing but a con artist, Detective Choi renews his search for the ultimate truth. Then another man appears suddenly, claiming he is the real killer.

1989 is the 64 Shouwa year in the Japanese calendar, thus the unsolved girl kidnapping-murder case is called “64(rokuyon)” that got up in this year in Criminal Investigation Department in the Prefectural Police Department. And 14 years were over as the prefecture’s police to be unsolved greatest stain, and statute of limitations approached it. In 2002, Yoshinobu Mikami, an ex-detective who was assigned as the investigator of the “Rokuyon” case 14years ago, moves as a Public Relations Officer in the Police Affairs Department against his will. As a newly assigned Public Relations Officer, he was troubled with the relation between the reporters, new case has occurred. And that new case traced “Rokuyon” case exactly.

1989 is the 64 Shouwa year in the Japanese calendar, thus the unsolved girl kidnapping-murder case is called “64(rokuyon)” that got up in this year in Criminal Investigation Department in the Prefectural Police Department. And 14 years were over as the prefecture’s police to be unsolved greatest stain, and statute of limitations approached it. In 2002, Yoshinobu Mikami, an ex-detective who was assigned as the investigator of the “Rokuyon” case 14years ago, moves as a Public Relations Officer in the Police Affairs Department against his will. As a newly assigned Public Relations Officer, he was troubled with the relation between the reporters, new case has occurred. And that new case traced “Rokuyon” case exactly.

The movie begins in the year 1995 where there were 5 peculiar murder cases. The murderer would always get someone close to the victim to witness how he would strangle the victim from behind with a rope but he would let the witnesses go and speak to the media on how the murders happened. Ito plays the role of Makimura, the police detective who was in charge of investigating the serial murders but failed to catch the cunning murderer and his respected superior ended up being killed as well. 22 years later in 2017 when the case is nearing its statute of limitations, a man named Sonezaki claims to be the culprit for the 1995 murders and even publishes a book titled “Watashi ga satsujinhan desu” to talk about the cases. Despite the disgust towards Sonezaki’s actions, the intensive attention showered on him via the media and SNS makes him become the talk of town.