Japanese sword one-handed actor Tatsuya Makino (Yagami Ren) and actress Risa Hamada (Yoko Mitsuya) with a bow gun are facing each other. Eventually the scene moves and a bow gun is fired at Makino, but the arrow is real ...
Yu Amagi (Noriyuki Higashiyama), Yoshiki Ebisawa (Seiichi Tanabe), and Shin Aoyama (Takashi Tsukamoto) will be present at the scene. Makino, who died with a crossbow arrow stuck in his chest, is a national star whose Hollywood debut is scheduled for next year, and it seems that the media has already sniffed his death. There were two types of crossbows, real and dummy, for shooting, but Hamada said that he fired them without noticing that they were real. Was it just an accident, or was someone deliberately substituting it ...!?
According to Aoyama, there are 335 people in the studio, including employees, filmmakers, actors, and staff, and no one has gone out since the incident. With 335 suspects, Amagi sharpens his eyes, saying, 'There is a criminal in this studio ...'. We start questioning one by one, but everyone is suspicious and has a habit ...
Eventually, Amagi, Ebisawa, Aoyama and others learn of the shocking fact that Makino, who was a popular actor, was actually a villain who randomly touched her actress, and there was a black rumor about meds. On the other hand, Takumi Nonomura (Jin Shirasu), who had been listening to about four suspicious fires that have occurred in the last three months, learned that there was a fuss in the studio, and Takashi Machimura (photographer cleaner) I talked to Hiroo Ohtaka) and explored the relationship with the continuous suspicious fire.
Is Makino's death an 'accident' or an 'incident' !? Amagi and his colleagues challenge the mystery of a huge closed room called a studio !!

In the new full-time investigative team, Sakashita Michitoshi (Kotaki Nozomu) is called the "Prince of the political world" and refers to the popular Minister of Education, Culture, Sports, Science and Technology Koichiro Muratomi, and Masatoshi Katagiri (Kotaro Yoshida)'s work attitude and leader. was criticized for his qualities as
Around the same time, the Chief Inspector's Office of the Metropolitan Police Department. Katagiri was summoned by Chief Inspector Masaki Tetsuya (Yamada Jundai). According to Masaki, the first trial of Yoshiharu Kondo (Yoji Matsuda), who was arrested on suspicion of causing death by injury by Michitoshi, was held, but a testimony revealed that Kondo had a clear alibi at the time of the crime. In addition, Kondo confessed that Michitoshi forced him to confess. Masaki urges Katagiri to choose between handing over Michitoshi's head or taking responsibility for the new full-time investigative team as a whole.
Katagiri goes to the scene of the incident Kondo allegedly committed. Freelance writer Maki Daigo (Hayashi Kazuyoshi) was pushed down the stairs by someone and died. Just before that, Kondo, who was arguing with Maki at an izakaya, admitted to the crime and confessed. However, the testimony of Yumi Fujishima (Akiko Hinagata), who runs a small restaurant and appears as a witness for the defense in the first trial, reveals that Kondo has an alibi. Did Michitoshi really force a confession? And is Kondo falsely accused?
Katagiri, who is investigating Kondo's background again, focuses on his previous job and goes to Shigeru Kuwai (Taro Suruga) in the Ministry of Education, Culture, Sports, Science and Technology. He asks for the disclosure of a document from 10 years ago, but it ends in vain. Katagiri, who has no other choice, gives Yu Amagi (Kiyuki Higashiyama) a bulletin and asks him to investigate the trends of the Ministry of Education, Culture, Sports, Science and Technology 10 years ago. Then, on the same day that Maki fell to his death, it was discovered that Yokozaki Takashi (Hyuga Jo), who was the private secretary of Minister of Education, Muratomi, was also found dead. When I re-investigated, it turned out that I had met with Maki just before that. After all, Kondo was falsely accused, and Yokozaki caused Maki to fall to his death, and then jumped to commit suicide...? Then, Michitoshi's emotions explode, as he perceives this as a roundabout message from Katagiri about the flaws in his own investigation.
Focusing on Amagi, when Kondo, Maki, and Yokozaki's relationship was reexamined, they eventually found a point of contact. It's a collusion issue related to the Ministry of Education, Culture, Sports, Science and Technology 10 years ago...
'Is there an ``invisible force'' at work in Kondo's trial?' 'What happened to Michitoshi?' 'What will happen to the new full-time investigative team!?'
'Amagi's obsessive investigation approaches the truth of the darkness that has shaken the nation!'