Detective Kyosuke Kozu's Murder Reasoning II (1985)
A 1985 Japanese locked-room mystery from TV Asahi, where a stolen diamond and a powerful man's murder push detective Kozu to his limits.
Detective Kyosuke Kozu's Murder Reasoning II - Movie Information
- Original Title: 探偵・神津恭介の殺人推理2
- Release Year: 1985
- Directed by: Yukio Noda
- Type: Movie
- Runtime: 1h 32m
- Original Language: Japanese
- Spoken Languages: Japanese
- Production Companies: TV Asahi
- Production Countries: Japan
Detective Kyosuke Kozu's Murder Reasoning II - Plot
Reportage writer Kenzo has made an interview appointment with Morishima, the mastermind behind the political and business world. On that day, Morishima is killed and a 200 million yen diamond is stolen. The diamond was brought by jeweler Kuhara to sell to Morishima. A woman named Maki who was present and disappeared immediately after the incident is suspicious. However, the site is a completely closed room. Kenzo's older brother, Matsushita, the chief of the investigation section, also shook his head...
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Detective Kyosuke Kozu's Murder Reasoning II - Cast & Crew
Director(s)
- Yukio Noda
Main Cast
- Toshiaki Tsushima
- Midori Kanazawa
- Baku Ohwada
- Daijirō Harada
- Kunio Murai
- Masaomi Kondo
Writers
- Kikuma Shimoiizaka
Detective Kyosuke Kozu's Murder Reasoning II - FAQs
What is Detective Kyosuke Kozu's Murder Reasoning II about?
The film follows a baffling locked-room murder case involving a powerful political figure and a stolen 200 million yen diamond. Reportage writer Kenzo is drawn into the investigation alongside his brother, a police chief, as detective Kozu works to untangle a web of suspects and impossible circumstances.
How does the locked-room mystery work in this film?
The murder takes place in a sealed location with no apparent means of escape, leaving investigators stumped. A mysterious woman named Maki vanishes immediately after the incident, adding another layer of intrigue. Detective Kozu must piece together how the crime was committed when the scene defies conventional explanation.
Where can I watch Detective Kyosuke Kozu's Murder Reasoning II?
You can check JustWatch for the latest streaming and viewing options available in your region. As a 1985 Japanese TV film, availability may vary, but JustWatch is the best place to find current rental, purchase, or streaming options wherever you are.
Who directed Detective Kyosuke Kozu's Murder Reasoning II?
The film was directed by Yukio Noda. It was produced by TV Asahi and released in 1985 as part of the Detective Kyosuke Kozu series, which adapts the beloved mystery novels featuring the sharp-minded detective Kozu.
Is Detective Kyosuke Kozu's Murder Reasoning II based on a book?
Yes — Detective Kyosuke Kozu is a classic character from Japanese mystery fiction, created by author Seishi Yokomizo. The Kozu series is celebrated for its intricate puzzle-plot mysteries, and this 1985 TV Asahi production continues that tradition with a locked-room diamond heist story.
Who are the main actors in this film?
The cast features Toshiaki Tsushima, Midori Kanazawa, Baku Ohwada, Daijirō Harada, Kunio Murai, and Masaomi Kondo. Together they bring the intricate world of the murder investigation to life across this 1985 Japanese mystery production.
What are similar films to watch after this one?
If you enjoy clever heist and mystery films, you might love The Hot Rock (1972), The Return of the Pink Panther (1975), Lupin the Third vs. Detective Conan: The Movie (2013), or Den of Thieves 2: Pantera (2025). Each offers its own blend of crime, wit, and intrigue.
How long is Detective Kyosuke Kozu's Murder Reasoning II?
The film runs for 92 minutes — just over an hour and a half. It's a tight, focused mystery that wastes no time getting into the locked-room puzzle and the hunt for a stolen 200 million yen diamond.
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