Italy, 1899: Fiery-tempered, seductive medium Alessandra Poverelli levitates a table at a Spiritualist séance in Naples. A reporter photographs the miracle, and wealthy, skeptical psychiatrist Camillo Lombardi arrives in Naples to investigate. When she materializes the ghost of his dead mother, he risks his reputation and fortune to finance a tour of the Continent, challenging the scientific and academic elite of Europe to test Alessandra's mysterious powers. She will help him rewrite science. His fee will help her escape her sadistic husband.