This movie was just Woman in the Dunes, but with less sand and more incest.
It was actually quite a decent film, I was hoping hat I was wrong about the situation of the cabin in the hole. It had the making of a great folk story, or at the very least a basis off of a situation similar to the purpose of the hole. But it is worth the watch to see it all happen and evolve into something that played nicely into the genre...