A proud and prudish Catholic mom from the suburbs of Pennsylvania, Shawna Lynn McDonnell volunteers to act as a chaperone on the first field trip at her son's new school. But what Shawna doesn't realize is that, on this field trip, she will be the one getting an education; an education in what it means to have power and who, in the new and hellish landscape in which she finds herself, actually has it and whose is just an illusion.
Nathan is slowly losing his grip on reality; his world degenerates around him into a series of depraved findings, nightmares, and a figure who seems to follow him everywhere.