I found this movie to have potential, but it's badly executed. The story is interesting with a mining town that has its people sacrifice strangers for a supernatural entity to feed on it. I wish the movie would go into the history of the mining place and why they need to sacrifice people for the entity. They briefly said it before the climax of the movie. Unfortunately, the movie isn't interesting at all because it's rather predictable and does have that much in the story. Most of the movie is just the two sisters getting chased by the villains and sometimes fighting back. It does have some suspenseful moments in those scenes, but nothing too big or interesting happens during it. Even the movie feels like it keeps going on for a little bit too long and is not that enjoyable. The climax itself is underwhelming and is anticlimactic on how it ends. The characters aren't really the worst, but aren't that interesting at all. I found the special effects to be a mixed bag throughout the movie. The way the entity feast on the deceased body looks pretty terrifying, but the CGI effects look really bad. Gore effects are also a mixed bag with some have pretty good practical effects, but the digital gore effects look mediocre.
The Graves have potential with its concept, but the execution is badly done on the direction they go with this movie. The movie does have recognizable actors in it, but they barely appear that much in the movie.