One might be ready to believe a film about Middle School children to be a Ghost House movie. But, this isn't about Middle School children, it is about the substitute teacher in the 6th grade class.
The students know right away that something isn't right, but it isn't until later that they discover just what is wrong. Of course, their parents don't believe them, and it is up to the kids, one in particular, Carl (Jonas Wandschneider), to save the others. Of course, Carl is the least likely student to save the day as he lost his mother in a car accident and has not gotten past it.
The film has first rate acting by Paprika Steen as the substitute teacher, outstanding cinematography, lots of black humor, a slam on psychology and parents who don't trust in their children, and some really fascinating special effects.
I am really impressed with Ole Bornedal, who wrote and directed this film and look forward to his new films.