Kôshoku: Genroku (maruhi) monogatari, aka Story of a Nymphomaniac is the tale of a free-spirited woman living during Genroku era Japan who wants to be happy but can’t seem to find the right guy. Natsu, played by the lovely Yuriko Hishimi, who you see in a promo shot below, is always horny (she believes semen nourishes her), and always conniving (at one point she pretends to be pregnant—complete with a pillow under her kimono), but her troubles don’t stem from her sexual urges. No, they stem largely from male assumptions that she’s available to any of them.

Indeed, the fictional character of Natsu may live in the 1600s, but her problems are very 2015. Yet she isn’t blameless. She digs a kimono merchant and won’t leave him alone even though he’s married. Bad things are bound to happen. Turns out matrimonial vows are elastic to him too. Bad things are really bound to happen. While all this is done with utter seriousness, there are also bizarre comedic bits here. What can you say about a movie in which a snake crawls in a woman’s pussy and she thinks it’s her lover getting frisky? Words fail us.

A direct translation of the movie’s Japanese title would be “Amorous Genroku (secret) story.” Well, there’s no secret here—Natsu is a nympho. But despite all her ups and downs she comes away feeling just fine about herself. And so do we. Kôshoku: Genroku (maruhi) monogatari premiered in Japan today in 1975.