A woman marries a disabled man from a prestigious feudal family yet has a forbidden relationship with her brother-in-law.

Mumyo Tsunataro killed his betrayed fiance Orie and He flees to Utsunomiya. On his way he happens to saves Chisaka Hyobu's daughter Oyu (She is exactly like Orie) be attacked by ninja. Thus he stays Chisaka's residence in Yonezawa. Chisaka was just trying to stop Forty-seven ronin's revenge against Kira Kozukenosuke by female ninja's sexual entrapment. Chisaka asks Tsunataro to lead female ninja. Tsunataro accepts the request on condition of marriage to Oyu.

The plot of BLUE FILM WOMAN is an equally delirious mishmash of horror, sexploitation and trippy nightclub sequences, centered around the family of a stockbroker whose unexpected financial crash results in him offering up his wife to his sleazy, saurian creditor Uchiyama. After prodding and pawing over her in the standard fashion for films of this genre, Uchiyama then locks her up in the garden shed inhabited by his mutant son Hiroshi, who arrives from the reafters clad in carnationi-colored robes. She manages to escape from his clutches in the nick of time, only to be mowed down by a passing car. (Jasper Sharp - Midnight Eye.com)