Usurper was inspired from a true story of a young man named Antonio Ferretti in 1890s in Trenton, New Jersey, who used a priest name of Father Mariano Luca as his own in getting a job as an Italian priest in Denver, Colorado. The young man with no experience struggled but he endured and won over the towns people, including the local Bishop. He worked hard, getting a new church, built, but with controversy. Having a lonely life he secretly had a...