Marshal Guarnaccia feels out of his league when he is assigned to help track down a serial killer, especially when he assigned to work under Simonetti, a man so dedicated to achieving a conviction that he is blinded to the consequences.

The debut of Marshal Salvatore Guarnaccia of the Carabinieri, a Sicilian, stationed in Florence. It is just before Christmas and the marshal wants to go South to spend the holiday with his wife and family, but first he must recover from the flu (which has left the Florentine Caribinieri short-handed) and also solve a murder. A seemingly respectable retired Englishman, living in a flat on the Via Maggio near the Santa Trinita bridge, was shot in the...