Interesting though quite unexpectedly weird horror film. Kevin Costner plays a recently separated parent who moves into a new isolated home with his two children. When Costner's teen daughter begins to act act strangely and develops a strange connection to a large mount of dirt in the forest behind their house, the film takes a turn I was not expecting from a Kevin Costner film. This film was much more reminded me of Spanish horror films of recent years, like "Dagon" or "[Rec]," which was co-written by the director of this film, Luiso Berdejo. SPOILER ALERT! When the film begins to involve subterranean monsters looking to capture a new female to help their monstrous tribe procreate, I'm not at all surprised that the film immediately garnered terrible reviews from mainstream film critics. It's not a story for mainstream audiences and the fantastic (and admittedly ridiculous) nature is something that is never going to appeal to most audience members. However, if you're a fan of oddball HP Lovecraft or Hellboy-like stories of ancient species, ancient rituals and a focus on unseen horrors, I think this is a film to checkout.