The series chronicles the adventures of a woman Rei, who, working for a fictional Tokyo Metropolitan Police Department secret agency called Zero Division, goes undercover to infiltrate and assassinate drug kingpins, mercenaries, and various criminals and their henchmen.
[1][2] Zero Woman: Red Handcuffs (０課の女 赤い手錠, Zeroka no onna: Akai wappa) was released by the Toei studio in May 1974.
Along with Female Convict 701: Scorpion and its sequels, it was part of Toei's Pinky Violence series of sexploitation films made in response to the success of the Nikkatsu studio's Roman Porno titles.
[3] The film starred Miki Sugimoto as Rei who is released from prison to become the deadly assassin Zero Woman for a secret government agency.
The film was directed by Yukio Noda and like the Female Convict Scorpion series was based on a manga by Tōru Shinohara.