Nami Matsushima has escaped from the prison to which she was sentenced in Scorpion, but is now obsessed with tracking down the--don't laugh--one-armed man who murdered her younger sister fifteen years ago. Nami is certainly no great action heroine, and the plot at times makes little sense, climaxing with a coincidence more ridiculous than any Shakespeare ever used. For complicated reasons, Nami uses her medical knowledge to break into a women's prison as staff physician. There, as in the previous movie, the convicts wind up naked awfully frequently.

Nami Matsushima, a former doctor, is put in prison for murdering one of the men who raped and killed her sister. Now, faced with violent and lecherous prison gangs, an aggressively amorous warden, and with a friend on death row, Nami must steel herself for a ten year stay in one of Japan's toughest women's prisons.