A street -wise magistrate battling a corrupt establishment
Samurai Koheita Mochizuki, who goes by the nickname Dora-Heita, meaning "alley cat" or "playboy," pretends to be an alcoholic magistrate but is in actuality an envoy from the daimyo sent to clean up the corrupt and lawless town. Heita has an unorthodox plan to rid the domain of three yakuza bosses, Nadahachi, Taju and Saibei, who run the high-crime area of Horisoto with the tacit approval of the castle's highest officials. His task is complicated by the unexpected arrival of his mistress Kosei, a geisha from Edo.