Confusing and shocking

First off I don’t understand this movie at all. The most horrifying thing about the movie was the eyeball getting cut open. I did not expect that to happen. I think that was the opening shock. What was this movie about? Was it a movie to shock people I think it was. It was so random and out place. There were dead deer on pianos bleeding, there was a street outside the door then all of a sudden it was a beach. I could not follow this movie possible because there were no words. It went from a nun on a bike to a man in the room to a man she loves on the beach. It is the same man. Does she love the man who molests her and tries to lock her in the room. Also whose hand is in the box and what does the box represent. Overall I watched the movie several times and don’t understand one bit.