For a film about family secrets, "We Are What We Are" is about as good at keeping secrets as a hyperactive four year old. Every ounce of suspense is out in the open through heavy visual metaphor and predictable tropes within the first 3 minutes. Here come the spoilers, but I encourage you to read on, trust me it will save you an hour and 55 minutes.
That whack job religious family of recluses, yeah they're cannibals. It's a family tradition that goes back over 200 years as documented in a book of their family history. Daddy locks them in the basement under the shed, they fast for a week then the wimen folk butcher them up and make a stew. Then they dump the bones in the creek behind there house and wear the jewelry around town. I have no idea how they have kept the town from figuring this out short of a hammer to the head. It all comes out in the wash, literally, when there is a flood that washed the bones up. Then again anyone clueless enough to live on a flood plain is obtuse enough to be fooled by a pissy teenager covering up sounds coming from the shed by sternly stating "I dunno whatchoo heard, Marge, but YOU ARE MIS-TAK-EN!" The whole thing ends with a series of half assed murders and suicide attempts, then the girls eat Daddy alive. This film tries to be suspenseful, it struggles to be scary, but in the end it's just gross and lame.