Don't know why IMDb rating is so low nor why are people leaving negative reviews. It was a different concept with non-linear storyline but it wasn't hard to keep up with at all. I guess most people want simplicity.
Character arcs are great. Cast is great. Plot twists are unexpected. The entire film is very different from usual horror films of this sub-genre.
It's atmospheric and cinematography is good. There is adjusting period to non linear plot but you catch up very quickly after the first 20-25mins.
Kills are gory and satisfying, ending is pure emotion.
7.5/10, would watch again.