Is this really a giallo?
Don't ger me wrong, I loved the film, but I really don't think it fits the "giallo" subgenre. I'm used to gialli which try to break the pattern and do something different (most of them from Bava himself, like "Bay of Blood" and "Five Dolls for an August Moon", or even Fulci's "Sette Note in Nero" ? considering the supernatural element ?, and even Argento's supernatural takes as in "Suspiria", "Tenebre" and "Phenomena").
Most of them have gloved killers (sometimes serial), stylistic and violent deaths, have very sexual and erotic elements or explore taboos in general, focus on cinematography and visuals over plot.
However, on this feature the only thing that would link it to the subgenre is the beautiful cinematography by Vittorio Storaro (apart from the obvious fact of its Italian production). It has an interesting plot ? intentionally derivative, but still elaborate ?, one timid sex scene, no whodunnit kind of plot, only one death later in the film and even that wouldn't fit the giallo characteristics.
I don't think this is a giallo, it's a great psychological thriller ? I think this description is more acurate.