A criminal turned state witness informs Montalbano of an arms stash in a cave just outside Vigata. Also uncovered in the cave is a secret chamber where the bodies of two lovers, killed sometime in the 1940s, were buried in a bizarre ritual. An intrigued Montalbano must challenge the Mafia and deal with the arms cache before he can investigate this second find.
Elenco: Luca Zingaretti , Giacinto Ferro , Cesare Bocci , Peppino Mazzotta , Carmela Gentile , Isabell Sollman , Marcello Perracchio , Angelo Russo , Katharina Böhm , Lina Perned , Biagio Pelligra .