I was loving this for the first hour
But then all the subtlety and ambiguity melted away, the plot became far too schematic, and it just reminded me of the meme with the drawing of a horse that starts off beautiful and intricate but ultimately becomes crude and cartoonish. It even felt like the cinematography got worse, although that's probably an artifact of my general disappointment with the third act (after the “old man” shows up).
5/10, meh.