Smile
This movie is so good until the end. The dread is fantastic, the unknown is quite scary and utilized well, but the end removes the whole point of the story. The main character has to confront so much of her trauma and accept it, and it feels very rewarding until it hits you with the "ha ha this was all a dream/vision sequence", and turning the smile thing into a monster at the end feels cheesy and boring. Would've been 5/5 if the movie ended after she burnt down the house.