Natsumi Yukihira (Ryoko Shinohara) receives secret documents of an organization that controls the country from the shadows. Because of this, Natsumi's ex-husband, Kazuo Sato (Teruyuki Kagawa) pays a terrible price. Natsumi goes back to the Investigation #1 of Tokyo Metropolitan Police Department to take on the organization, but Natsumi becomes involved in a new case. She gets closer to the final enemy.
| Directing | Shimako Satō | Director |
| Camera | Akira Sako | Director of Photography |
| Writing | Shimako Satō | Screenplay |
| Writing | Takehiko Hata | Novel |
| Sound | Norihito Sumitomo | Music |
| Production | Hideki Inada | Producer |
| Production | Hideki Yoshijo | Producer |
| Production | Hirotsugu Usui | Production Supervisor |
