Tara Spencer's mysterious pregnancy causes her family and fiance to turn against her, and sidetracks her plans for medical school. Only a stranger, Cyril Woods, believes her claim that she's still a virgin. The religious order that Cyril belongs to thinks Tara's child may be a new messiah. But when prenatal testing raises troubling questions the order becomes Tara's enemy, convinced she will trigger the first stage of the Apocalypse. Tara fights for her life, seeking a safe place to give birth and the answer to whether she and her child are meant to save the world or destroy it.