Leonardo Cagliostro, a policeman, dies and decides to stay on Earth in order to find out more about the circumstances of his death and to save his wife, Anna, who's in danger.
The beautiful daughter of the Roman governor during a time of fierce Christian persecution is a nonbeliver. But when a slave raised alongside her like a sister is condemned to death for her Christian faith, she valiantly attempts to save her.
Don Matteo is a thoroughly ordinary Catholic priest with an extraordinary ability to read people and solve crimes. He’s a parish priest who never met an unjustly accused person he didn’t want to help.