Gérardmer Festival Grand Prize winner for a reason This movie won the Grand Prize at the Gérardmer festival. Other well-known movies that have also won this esteemed award include Scream, Cube, Stir of Echoes, The Orphanage, It Follows, and Bone Tomahawk.
This is a sad, scary, disturbing, violent, and creative film with a complex plot. It confronts the most uncomfortable things about life as a human being: anguish, suffering, violence, disfigurement, terror, loss, lack of hope. I personally think it is better than Martyrs.