At the risk of her group's safety, a young woman travels into a National Forest where her sister has become trapped in a multi-dimensional world of monsters.
A demonic creature not of this world impregnates a woman. 160 years later a team of ghost hunters must set aside their quick buck party mentality when they discover one of their team is the offspring of the entity haunting the place - and its true target. The offspring and her friends become uneasy allies with the ghost of the mother to destroy the demon and restore harmony.