Build a movie plot around this: What does Katherine realize her son is? The prophesied demonic child
A:
Katherine Winter (Hilary Swank) and colleague, Ben (Idris Elba), investigate and disprove claims of miracles. In Louisiana, Katherine receives a call from a friend, Father Michael Costigan (Stephen Rea), who says that his photographs of her have developed burn marks that when assembled, form a sickle-like symbol, a possible warning from God, which she ignores. She meets Doug Blackwell (David Morrissey), a teacher from the nearby town of Haven, who asks Katherine to find out why Haven's river has turned red. The locals believe this is a biblical plague caused by a girl, Loren McConnell (AnnaSophia Robb), who they believe killed her older brother in the river. They travel to Haven where Katherine meets Loren and has a vision of her turning the river red. Meanwhile, Ben witnesses dead frogs seemingly fall from the sky. Doug invites them to spend the night at his house, since the town doesn't have a motel. That night as they're about to eat dinner, they encounter flies and disease, which kills off local cows. Later that evening, Katherine explains to Doug at his wife's grave why she left the church; five years ago, she was an ordained minister. After a drought while doing missionary work in the Sudan with her husband and daughter, the locals sacrificed her family, believing they were the cause.Test results from the river prove it to contain human blood. The citizens meanwhile are shaving their children's hair, due to an outbreak of lice. Ben and Doug try to get the mayor to evacuate the town, but he and his staff are struck down with boils.Katherine calls Father Costigan, who explains that he has researched a Satanic cult which sacrifices every second-born to create a child with "the eyes of the Devil" to bring them power. He also states that an angel, who cannot be harmed by the cult, will destroy them. He insists that Loren is the devil child, while Katherine is the angel. Suddenly, a supernatural force burns Costigan's room, killing him. Katherine goes to the McConnell house where she finds the cult's...