A young restorer is commissioned to save a fresco representing the suffering of St. Sebastiano, which was painted on the wall of a local church by a mysterious, long-dead artist.
In 1950s Italy, a government official arrives in a rural town to investigate a grisly child murder. The culprit is a young boy who claims he acted in order to kill the Devil itself.
Dante arrives at the castle of the recently deceased Marquis Zanetti to sell a book which contains a prophecy that the death of nine members of the Zanetti family will reveal a hidden treasure.