The lovely Shinobu Himeno is arrested and thrown into Asahi Female Prison for
being an unwilling accomplice in a jewelry store robbery. She’s to serve her
sentence in the infamous Cell Block 21, a dismal area full of tough, sex-starved
women. Himeno is bullied and abused by inmates and guards and, after being
framed for starting a fight, is taken away and tied up by the prison’s infamous
Mr. Kiya. Through flashbacks, we discover why many of the women have been locked
up here and soon, in one great act of defiance, they rise up to overtake the
prison in a bloody, violent riot! Can the shy Himeno ever escape this living
hell? Loaded with gratuitous nudity, sex, and violence, WOMEN IN HEAT
BEHIND BARS is one of the best of the “Women in Prison” genre of Nikkatsu’s vast
exploitation catalog.