Genres come in all shapes and sizes apparently. I recently opened a can of worms on Facebook trying to define film-noir, a genre that, according to some, has lasted from the early forties, perhaps earlier, to the present day. In Japan, however, we had 'film-pink' or rather pinku-eiga, a series of sexploitation pictures totally unlike the sexploitation pictures popular in Europe or America. Some of these films could indeed be described as 'inscrutable'.
"Inflatable Sex Doll of the Wastelands" is one of the best known of the 'pinku-eiga' pictures. Shot in widescreen, black and white it is a kind of esoteric Yakuza film with gangsters and snuff movies very much to the fore. It's certainly sexually explicit for a movie made in 1967 though perhaps no more so than a European sex film of the period but what passes for a plot marks it out as very much an art-house affair, (I doubt if the Soho 'dirty-mac' brigade would sit through it to the end). Visually it's often extraordinary and it wears its American influences well, down to a somewhat jarring jazz score and it has cult movie written all over it. I'm sure there's an audience out there somewhere for it but personally I thought it a load of pretentious rubbish and its disappearance over the years is perfectly understandable. Of course, if you haven't heard of it it's possibly because in the West it was called "Dutch Wife in the Desert" for reasons perhaps even more obscure than the film's plot.