Through a Glass, Darkly

On a luminous spring day in Venice, Commissario Guido Brunetti and Inspector Vianello play hooky to help get Vianello&;s friend Marco Ribetti&;an environmental activist arrested during a protest against toxic waste being dumped into the city&;s waters&;released from prison. But on the steps of the police headquarters, they come face-to-face with Ribetti&;s cantankerous father-in-law, who has been overheard making threats against Ribetti. And when the body of a night watchman is at the father-in-law&;s glass factory next to an annotated copy of Dante&;s Inferno, Brunetti must find out if there is a connection between this and whoever is ruining the waters of the lagoon.