In 1995, the serial killer brutally kills five people. A young policeman Wataru Makimura is investigating the case. Despite many attempts, the perpetrator is not caught and the investigation is closed due to the statute of limitations. A moment later, just 22 years after the first crime, Masato Sonezaki publishes the book "I am a murderer" in which he describes in detail the last moments of each victim. The book becomes a bestseller, and Sonezaki
is one of the most popular people in the country.