The ghost.

The main reason that I liked this movie is that the ghost of the twin sister, Linda, seems to be there, and it's fairly well done and spooky. I hardly see this aspect mentioned online.

The part where they find the suicide note, and later the dream sequence with Linda.

The sister, Helene, and Lars the employee, go into the room where Linda was staying. Everything's been covered in white clothes and sheets, and they even say how ghostly it looks. They remove the sheets and the sister sees the bathtub in the adjacent bathroom where the sister killed herself. "I'm getting bad vibes. Did you hear that? She's in the bathroom?" Helene looks in the bathroom for clues and makes poor Lars lay in the bathtub. The clues indicate that Linda was playing some sort of game for her siblings to find her suicide note, a game they played as kids called "getting warmer" as if she was emotionally stunted or left behind in her childhood.

This part is divided by what the other siblings are experiencing, and I can only assume that they are being emotionally impacted by the ghost. Michael and his wife, Mette, fight and then have some sort of weird grudge sex. Christian is talking to a girl named Pia who cries and speaks of being left behind, and is only in his room to take a bath, as if she's possessed by Linda. Then Pia acts like she's going to drown herself. After the grudge sex, Michael gets in the shower.

Then Helene decides to keep the suicide note a secret and Pia snaps out of it and Michael falls in the shower.

All the while, the camera angles are bird's eye views or sometimes floating around as if everything is being seen by an invisible person.

What does everyone else think about it?