Erosu purasu gyakusatsu is a 1969 Japanese-language Biography Drama film written by Masahiro Yamada and Yoshishige Yoshida. The movie is directed by Yoshishige Yoshida and produced by Gendai Eigasha. In the 1920s, the anarchist revolutionary Sakae Osugi is financially supported by his wife, journalist Itsuko Masaoka. He spends his time doing nothing but philosophizing about political systems and free love and visiting with his lovers Yasuko and the earlier feminist Noe Ito. He conveniently defends three principles for a relationship between a man and a woman: they should be financially independent (despite the fact that he is not); they should live in different places; and they should be free to have sex with other people. In 1969, twenty-year-old student, Eiko Sokuta is sexually active with various men. Her friend, Wada, is obsessed with fire and they usually play odd games using a camera while they read about Osugi and Ito. Written by Claudio Carvalho, Rio de Janeiro, Brazil. Erosu purasu gyakusatsu stars Mariko Okada in the lead role along with an ensemble cast including Toshiyuki Hosokawa, Y Ko Kusunoki, Kazuko Ineno, Yûko Kusunoki, Kazuko Inano and Etsushi Takahashi. The music was composed by Toshi Ichiyanagi. Cinematography was done by Motokichi Hasegawa. The motion picture has a running time of 216 minutes. It was released on 15th October 1969. Distribution rights for the film were acquired by Geneon Entertainment.