Father Frank Shore is a charismatic priest who serves as a church-appointed "spiritual detective," probing the facts behind reported miracles. Nicknamed "The Miracle Killer" following a disturbing incident, Father Frank is on the brink of hopelessness, living on the streets as a lay person. A powerful Bishop tracks him down and hands him an unwanted mission: he must journey to St. Stanslaus in the heart of Chicago where mystical phenomena are said to be taking place surrounding a recently deceased immigrant woman. There Father Frank uncovers a series of extraordinary events, but the most extraordinary thing of all may be the "saint's" very earthly daughter, Roxanna--a fiesty, angry non-believer who cannot forgive her otherwise selfless mother for abandoning her at the age of 16. The closer he gets to proving his first real case of a miracle, the closer he gets to Roxanna--whose alluring reality brings his doubts and desires to the fore, imperiling the very foundation of his investigation.