In the final days of the Edo shogunate, a government commander enters Edo Castle to inspect the Ōoku. Ignoring warnings, he steps into a forbidden room where, 200 years before, Lady Oyuki, a favored concubine, was forced to commit suicide by Tokugawa Tsunayoshi over a suspected affair. Consumed by vengeance, her spirit continues to haunt all those involved in the tragedy.
Unfortunately the movie Nihon Meisaku Kaidan Gekijō: Kaidan Ōoku (Hi) Akazu no Ma is not yet available on HBO Max.
| Directing | Nobuo Nakagawa | Director |
| Writing | Ichirō Miyagawa | Writer |
