Billie, an ailing 26-year-old woman, meets a handsome missionary, Gideon, who promises her eternal happiness and health if she turns her life over to Jesus. Their instant attraction opens the door to her seduction, and he introduces her to his dreams and desires. Lured by his seeming devotion to her and to God, as well as his sizzling sexuality and yearning for a meaningful role in the world, she falls in love, both with Gideon and the spiritual promise he offers. Inducted into a bizarre, nominally Christian cult calling itself The Family International (Children of God), Billie is morphed into a diligent student, immersed daily in the rote memorization of Bible passages and the writings of their leader Moses David. Pressured to use her body to win souls for Jesus, Billie is caught in a whirlpool of love, sacred aspiration and unbridled sex, struggling to reconcile her feelings for her new lover, God, and the teachings of the cult's self-proclaimed prophet, Moses David.