The little boy in the closet in the bedroom.
I was having a hard time putting a candle right in front of him.
I think I died twice trying to do it. The cries from him scared me.
[spoiler]the windows starting to shake at one point of the game. at this point it really felt like the room was filled with hatred that made everything shake of aggression.[/spoiler] the only really scary part in the game imo.