Something I would like to see more of in horror...

A little difficult to exactly explain but I'll give it a go. A sustained feeling of fundamental wrongness throughout a film. A sense that at no point are things quite safe or normal or happy and that things will only get worse and worse. Unrelenting, suffocating doom. The main example I have of a film that does this, the film that prompted it in fact, is Noroi. But the original Texas Chainsaw Massacre does a similar sort of thing. And otherwise films sometimes approach it, like The Blair Wtch Project or Candyman or earlier stages of Jacob's Ladder. But all too often there is levity, or clarity. The doom lifts. I want unlifting doom.

What are some horrors I should try out for unlifting doom?