Eh it was okish... Rather pointless murder porn as the protagonist falls deeper and deeper into insanity... And what the fuck was with that primal scream at the end

It's a very intricate plot, and it's hard to comment on it without spoiling it a little bit, so I just shall say nothing specific. This was however, developed very nicely, and I would dare say it had the trope done in a much better way that others. It's not a great movie, but it's a decent one, and even with it's slow pace, I found it hard not to watch and follow. The atmosphere of suspense is just that great!