A doctor travels to a remote plantation to care for a disturbed boy who has inexplicable abilities. She ignites a war of science versus religion with the local priest who believes the boy is possessed by the Devil.

A doctor from New York (Amber Heard) travels to a remote plantation in the 1890s to care for a disturbed boy who seems to have inexplicable abilities. She begins treating the child, but in doing so ignites a war of science versus religion with the local priest who believes the boy is possessed by the Devil and is the reason for all the village's woes.