Set in the Edo Era, the film opens with a group of women being convicted of various crimes. The rest of the film is given to graphic depiction of the tortures the women endure as part of their sentences.
A girl, whose parents were humiliated and killed by a policeman for suspected spy action during the war in China, takes revenge by torturing and then shooting him, the killer.
While an obscene audio tape is played, a young woman has sex. She becomes obsessed with the recording and can only achieve orgasm if she is listening to it. Complications ensue when her boyfriend becomes troubled by the tape and is unable to perform sexually while it is being played.