How does a man go from serving Satan to becoming a Catholic saint?

Discover the incredible true story of St. Bartolo Longo, a brilliant Italian lawyer who became deeply involved in the occult and was initiated as a satanic priest before experiencing one of the greatest conversions in Church history. Through the power of prayer, the Rosary, and God's mercy, Bartolo left behind darkness to become the founder of the Shrine of Our Lady of Pompeii and a champion of the Catholic faith.