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Following a bizarre accident on a desert road and an odd encounter with another boy about the same age, KK (Kristoffer Joner) returns to his hometown after a long period of estrangement. It's a cozy yet slightly spooky place, a rural locale with a massive waterfall, surrounded by a daunting forest, and filled with unpleasant memories: the memory of the abusive mother who practically drove KK away, and who is now mercifully dead. In her will, she left KK a home in the heart of the woods; entering the house and coming face-to-face with disturbing memories conjures up torrents of evil that lurk inside of KK - malice that he suppressed for years but that now manifests itself with devastating force.