As a film it never did anything for me first time, but I saw it for the second time when I was 18/19, while I was tripping absolute tits on mushrooms and oxycodone. Watched it on a laptop, with headphones, in the dark.
Huge mistake. I had trouble sleeping for fkn weeks afterwards. Kept having flashbacks to that image of him standing in the corner and the sound of the kids giggling outside the tent whenever I turned the bedside light off. Brrrr.