The serial killing of a samurai each night by strangulation at various temples confounds investigators and brings a chill to the residents of Edo. With the capital on edge, master crimefighter Kondo Umon is brought in to try and solve the case. His illustrious career aside, Umon must risk his own life, time and time again in order to bring the culprit to justice. This mystery will keep you guessing until the exciting climax. Umon has a flair for the dramatic and will hopefully solve the case before more innocent victims have their lives claimed!
Unfortunately the movie Case of Umon: The Nanbanzame Murders is not yet available on HBO Max.
| Directing | Shigehiro Ozawa | Director |
| Writing | Mitsuzō Sasaki | Original Story |
| Writing | Hyōgo Suzuki | Screenplay |
| Sound | Seiichi Suzuki | Original Music Composer |
| Lighting | Yoshikazu Inoue | Lighting Technician |
| Sound | Shunichi Yasuda | Sound Recordist |
| Art | Takatoshi Suzuki | Art Direction |
| Editing | Shintarō Miyamoto | Editor |
| Production | Keiichi Hashimoto | Producer |
| Camera | Takeo Itō | Director of Photography |
