“Goodnight Mommy” is the remake of the 2016 Austrian horror film of the same name. I say remake lightly. The original movie tackles what it’s like to go through a period of grief when you’re entirely alone. This film does the same thing, only here, and brilliantly when you think about it, you’re not quite sure what the hell is going on! Well, at first. It’s a tad slow. However, that’s what makes it so good… or is it confusing to its audience? That’s why I also use the word “brilliantly.” When you leave the theater, you can’t help but continue to think about this movie eating away at you.