Could have been great, but isn't
I would love to see a 90 minute version of this. There is so much repetition and so much pure junk in it that it's hard to watch. IMO, the scenes of marital discord can be cut in half(if not more) and you would still get the director's vision.
I think the director was just so in love with what he shot that he couldn't let go. It would be amazing to see Dario Argento cut this into a coherent film with proper pacing.