Leaving viewers in the dark about the true inclination of a piece is commonplace in Art Cinema. I do agree that most mainstream films now are over explained and blatant with whatever plot device is being utilised. However, while i think it's good for the viewer to give a little of themselves to work at understanding a director's vision this was a little much.
The visuals are beautiful. Some of the little touches exquisite (the way the teenage Ana hypnotically chews on a strand of her hair was simultaneously abhorrent and alluring) I'm sure there is an intricate back-story here with allusions to Sigmund Freud etc (from what i've heard there is a portrait of him in the house, however i didn't see it) but i'm not hugely interested in discovering what it is. A little explanation can make all the difference. Some connection with the audience would have helped this piece along.
In the end, the plot made little difference. Its slightness WAS the film for me. I enjoyed the inspired jump-cuts and the obsession with body hair and sexual gratification. I was amused and disturbed. That's fine. But the film used these devices to the point of saturation. Overkill. Egotism.
I may be missing the point here, so be it. This film stands well as a piece of visual art. The vivid blue Mediterranean, the dark haired women, the gorgeous cinematography in general. But it is missing something as a film and thus with narrative. It would have worked FAR better as a short 15 minute piece.I would like to say i'd re-watch this and get to grips with what the director is trying to say, but that would be a lie. Certainly this film is nothing like the Giallo films of Fulci and Argento that i have seen so far in my admittedly limited viewing.