A motorcycle cop and a freelance photographer, having learned the location of 1 billion yen's worth of the Imperial Navy's gold, team up to salvage it.

The secret map of the treasure of Kenzan was stolen out of the house of a former soldier in Awa. A fight over the treasure that the map shows happens among the Rozyu, a Ronin, a thief, and the Hyodo family. Is the treasure there? Who will get it? Masakazu Tamura plays the role of a ronin from Edo, Hayato Arakida, from the Mumyo Tenshin school dojo and a swordmaster working for Lord Awa. The film is based on the original work of Kyotaro Nishimura. A period show with a fierce fight on a raft going down a river and romance.

A César award nominated short feature.

Katsura Aya (Shiratori Yasuyo), a young and popular actress, is kidnapped. Igarashi (Honda Hirotaro), the president of the production company, calls Totsukawa (Mihashi Tatsuya) and Kamei (Aikawa Kinya) of the police. Totsukawa and Kamei learn that the kidnapper's name is Aoi Hebi (Blue Snake) and that Aoi Hebi is asking for one million yen for ransom.

Haneda, the president of a company dealing in gold, is shot to death on the Raicho 9 limited express from Osaka to Kanazawa. Detective Kamei begins an investigation in cooperation with the Fukui Prefectural Police. In the Green Car, Detective Nishimoto had noticed a beautiful woman talking to the victim just before he was killed. Looking into her background, she turns out to be Yumiko Miura, living in Setagaya in Tokyo. An eyewitness who claims that she is the murderer also appears, and she is taken into custody. Before long, the victim's unexpected relationships will be revealed one after another...

The strangled dead body of Hiroshi Hatano, accounting section chief at the longstanding apparel company Edaka International, is discovered in his apartment in Tokyo. At the scene, Inspector Totsugawa and Detective Kamei find out that a mysterious email stating "I'll be riding the Super Ozora 5 tomorrow" was sent to the victim's cell phone the night before. The sender, Manami Furuya, an employee of Edaka International's Planning Section, has strangely terminated her cell phone service and hasn't shown up to work that very morning. Immediately afterwards, Totsugawa is astonished to receive a report from the Hokkaido police stating that the body of a man, stabbed to death, has been found on the Super Ozora 5 limited express. The man is Yuuki Nakamura, a bar employee from Tokyo, who seems to have flown from Haneda Airport to Sapporo and then boarded the Super Ozora 5, which connects Sapporo and Kushiro. Totsugawa has the feeling that this can't be a coincidence...

Detective Kamei of the First Investigation Division receives a request from lawyer Shinichi Nakamura, the son of his deceased close friend, to re-investigate a car accident. Akiko, the wife of Yasuo Furuki, a painter from Hakone, died in the accident 5 months earlier by crashing into a guardrail. Nakamura's client, Akiko's younger sister Yuki Izeki, suspects that she was actually murdered by Furuki for insurance money. Overwhelmed by these thoughts, Yuki had sent an email reading "I'll never forgive that man. I'm going to kill him and avenge my big sister," announcing a murder to Nakamura. In the middle of their conversation, Nakamura receives a call from Hakone PD confirming that Yuki had turned herself in that morning...

While returning from a business trip to Hokkaido, Detective Kamei of the MPD greets a middle-aged traveler in the waiting room of Minami-Wakkanai Station but is ignored by him. On the limited express to Asahikawa, the same man happens to entrust Kamei with a floppy disk before dying. The floppy contains his investigative notes on a murder that happened two years ago...