Another Book of Mormons

Eugene Lannon journeys to Utah during the Civil War in search of materials for a book about the Mormons. He is accompanied by his wandering wife. He is fascinated by a would-be Prophet who convinces Eugene to become a scribe for his prophecy. All is not right in the Prophet's family as multiple wives are being murdered. As each wife testifies about her role in the family, the secret to the murder lies in the Mormon past.