When a respectable councilor in old Miyako is murdered while he is with a new concubine, a number of suspects arouse the suspicion of Matsudaira Konnosuke, governor of Miyako. Along with his aides -- the blonde Rosamund, the samurai Jiro, and the deadly female ninja Okiku -- Konnosuke investigates. The witnesses provide valuable information, along with numerous erotic interludes, in this salacious mystery.