A notorious cult kidnaps a young woman, Gloria, and sacrifice themselves by the light of the locust moon. The next morning Gloria awakes, caked in dried blood and surrounded by corpses…but she is alive and safe – or so she thinks. Years later, the locust moon is about to rise again and Gloria is captured once more by a surviving member of the cult. She is taken to a remote cabin where she learns that a demon has been growing inside of her all these years, and before the dawn it will rise.
