Beware: this is NOT a horror film.

It actually is a drama - a very heavy and grim one I might add - with psychological, thriller and fantasy elements.
The cover and the genre labelling are very misleading. There are only a couple of scenes which might be considered remotely horror.
If you are looking for something scary and/or gory, you might want to know Sublime is an entirely different kind of movie.

Boycott movies that involve real animal violence! (and their directors too)