Female Prisoner Scorpion Collection

After being cruelly set up and deceived by Sugimi (Natsuyagi Isao), a conniving and crooked detective she had whole-heartedly fallen in love with (and subsequently lost her virginity to...), Matsushima Nami's desire for revenge knows no bounds. Her failed attempt at stabbing Sugimi on the steps of the Tokyo Metropolitan Police Headquarters results in her doing hard time in a female prison run by sadistic and horny male guards. To Sugimi's surprise, Matsushima refuses to testify against him and his connections to the mob, and now the sheer fact that she knows such secrets makes her a liability. So Sugimi and the Japanese mafia orchestrate a plan whereby Matsushima will succumb to an "accidental" death in prison. They enlist the help of Kagiri, another female inmate with ties to both Sugimi and the mafia, thus their formidable plan is quickly set in motion. Little do they realize, however, how hotly Matsushima's desire for revenge burns within her.

Matsu, known to the prisoners as Scorpion, is locked away in the bowels of the prison as revenge for disrupting the smooth operation of the prison and for her disfiguring attack on the warden. Granted a one day reprieve due to the visit of a dignitary, she takes advantage and attacks the warden again. This leads to more brutal punishment and humiliation. But the punishment gives her an opportunity to escape along with six other female prisoners. Their surreal flight from prison pits the convicts against the guards, the warden and each other.

Sasori is outside the prison and on the run from the police, wanted for breaking out of prison and murder. She takes refuge with a woman who has a brother with a learning disability. The woman and her brother are also involved in an incestuous relationship. Both the police and an ex-prison mate of Sasori's pursue her.

Once again on the lam, Matsu is helped by a strip club worker who holds a grudge against the detective who's trying to find her.