We Are What We Are

I watched this film this week. It concerns a family (a dad, 2 daughters and young son) who start the film with the death of their mother. The family seem to be very religious and sort of backwards in an Amish style way. Living in modern society but not having many of the modern day trappings of technology. However they do own, and the father drives, a car. Apparently, according to Wikipedia it is a remake of a Mexican film. I wonder what the original was like? The story revolves around a family tradition of doing what it must to survive, born out of a flood many years ago. The flood story seems to have been written up in a bound diary/journal that is regarded with bible-like respect. We gather the mother was previously the cook and the father the hunter. The game in this case being the unfortunate humans who every year have to be slaughtered so that the family can keep the tradition alive. The question why is not, to my recollection, really addressed. We just have to believe it.
There is an elderly doctor in the film, whose own daughter mysteriously disappeared years ago. He has been doing a lot of research and has a dossier of other deaths in counties outside of the nearby area and sees a pattern. Unfortunately the local police think he is just grieving and not letting go and seeing patterns that aren't there. His suspicions are further aroused by finding a bone in a local creek that runs by the home of the family. He believes it is a human bone and as he studies it further suspects it has been scraped with an instrument of some kind.
The doctor does further research. The family behaviour is erratic when the son has a fever and they have to bury their mother. The doctor notices a hand tremor in the father and does further research into something called Kuru, which is a disease afflicting a tribe in Papua New Guinea who had it because they were cannibals.
It doesn't end well for the father but I won't give any more away. It is a fairly slow paced film but one that is well made and builds well to its climax, which is pretty good. It's certainly not a bad film. The acting is pretty good and so is the story. Worth watching again in the future at some point.