The movie talks about an unsolved kidnapping case which took place in the year Showa 64 just when Japan was about to enter the Heisei era. Since then, the case became known as Rokuyon (64). Years after that, the investigation into the case takes an unexpected turn which leads to a clash between Sato's character as a police officer working in the PR department, the police force and prefectural police's journalist club.
Sato reflected on the filming process and said that it had been some time that he had exerted himself to this extent as each and every scene with his co-stars felt like a duel with them so he has high expectations of this movie. Before the filming began, Sato even told Eita not to hold back and that he will try to respond accordingly. Sato recounted that there was once when Eita was so into his acting that the latter's saliva flew onto his face and he joked that Eita's fans would have loved to be in his shoes then.