Zeroka no onna: Akai wappa aka Zero Woman Red Handcuffs - Yukio Noda - Japan - (1974)

http://www.imdb.com/title/tt0283693/ 

Plot from Mostenrs at play: "Renegade cop Rei (Miki Sugimoto) is put in prison after killing a diplomat who killed a friend of hers, and assumes she's going to spend the rest of her life rotting in prison when a shady federal agent shows up to offer her a deal. The daughter of a powerful politician has been kidnapped, and if Rei can bring back the daughter alive and kill off the kidnappers, she'll receive a full pardon for her crime."

A little masterpiece of Pink Violence ! This movie aggregates all the elements of the 70's Japanese Pinku cinema: sexual violence (plenty), torture and sadism (some) and the denunciation of the social system, all this hidden as a crime movie. It's also extremely well shot and visually stunning, as many Pinku were directed by, if not talented, experienced directors like Yukio Noda, making here his personal masterpiece (even if his directing style is clearly inspired by Fukasaku's). The movie is also entirely supported by a perfect casting, special mention to the beautiful and hypnotic beauty of Miki Sugimoto, an icon of Pinku cinema. Other members of the casting include Eiji Go, Testsurô Tanba and Hideo Murota, three extremely prolific actors that appeared in a gazillion movies during 30 years and have worked with such genre cinema legends as Seijun Suzuki, Kenji Fukasaku, Takashi miike and others...

Quite hard-boiled and cruel, this movie is an unmissable classic, highly recommended.

Trailer: