It is a centuries-old problem: False prophets who lead the unwary astray with a perverted version of God's message to man. Dr. Kennedy presents three primary marks of a cult to help Christians understand, answer, and stop those who wear wool but inwardly are, as Jesus said, "ravenous wolves." In addition, he looks at Mormonism, the Unity School of Christianity, Unitarianism, Christian Science, Jehovah's Witnesses, and Freemasonry.