All the good men and women, past and present, who shone a light for others to follow, had their own share of demons to conquer, and they emerged victorious. 

Malcolm is a young Harvard graduate visiting Italy. He befriends an enigmatic priest who offers to give him a tour of the Duomo Cathedral. The truth unfolds; this so-called priest is actually the devil, and he is after Malcolm's soul! 

In their travels to get to the cathedral, Malcolm and the devil encounter people with various sins. Their names are written in the devil's book; he will claim their souls. Malcolm argues with the devil over the alleged sins of these people while at the same time a little fearful; will the devil take his soul, too? 

"You may as well call me the devil, for I might as well tell you, I am indeed the devil." "That's impossible; the devil would not dress like a priest, carry the holy book, wear a cross, and work in a church." The devil smiled and said, "Why not?"