I only watched the trailer but this is what I can remember from the trailer. I think it's based in the 1900's or 1800's in England possibly. I believe it's just a boy and his mother living together. The mother is very sick. While on her sick bed she tells her son a story about a guardian in the forest. Saying something like, "if you call for her, she will come." One day the boy was being chased into the forest by a bully and the bully was beating the crap out of him. Then this tree guardian/monster appears and kills the bully. The tree guardian was a female and had like a rectangular head made from tree branches that were covering the eyes and she had a mouth full of rotten and black teeth.
