Nagisa Oshima’s depiction of the obsessive lovemaking between a prostitute and the husband of a brothel keeper, which leads ultimately to the death of the man (with his own consent), is one of the most powerful erotic films ever made, but it certainly isn’t for every taste. Based on a true story that originally made headlines in Japan in the 30s, which turned the woman into a tragic public heroine, the film concentrates on the sex so exclusively that a rare period shot—the man observing a troop of soldiers marching past—registers like a brief awakening from a long dream. This 1976 feature is unusually straightforward for Oshima, and those who are put off are likely to be disturbed more by the content than by the style. But the film is unforgettable for its ritualistic (if fatalistic) fascination with sex as a total commitment. With Tatsuya Fuji and Eiko Matsuda as the couple, and Aio Nakajima as the brothel keeper. In Japanese with subtitles.