If you've ever experienced trauma in your life or know and talked with someone who has, you can relate to this movie a bit more. It's not the jump scare type of horror that people who only watch horror on Halloween demand. It has a slower pace. You have to understand the mind state of deep trauma to truly understand it. Slow burn types of movies aren't for everyone. The people who give it a low score either had a really good life or you have to talk to them very slowly.