This is an ensemble period drama adapted from Shotaro Ikenami's popular novel, featuring the famous Kabuki actor brothers Kinnosuke Manya and Katsuo Nakamura, who made the transition from the Kabuki world to the film industry, and a cast of gorgeous and diverse faces. The Edo period. Nagato Abe, a Hatamoto (a feudal lord), is annoyed by his son's bad behavior, and when it becomes a hindrance to his own career, he asks Otowaya Hanemon, a black marketeer, to assassinate his son. The target is then taken care of by the assassin, Umeyasu. In order to keep his mouth shut, Nagatomon no Mamoru also attempts to take Otowaya's life. Nagato's brother-in-law, Omiya Sahei, a corrupt merchant from the Kamigata region, also plans to replace Otowaya as the head of Edo's black market business, so Umebayashi and his fellow trapper Hikojiro set out to eliminate them.
Unfortunately the movie Baian the Assassin is not yet available on HBO Max.
| Writing | Yōzō Tanaka | Screenplay |
| Writing | Seiko Shimura | Screenplay |
| Directing | Yasuo Furuhata | Director |
| Writing | Shōtarō Ikenami | Original Story |
| Crew | Yoshio Miyajima | Cinematography |
