In the main square of the town of Avila, everybody is celebrating the feast of Saint Eurosia, protector of earth's harvest. But something is happening in the village bar...

Salvo and Valentino are two Sicilian friends who have moved to Turin, and now run a small business together. They drive foreign tourists around in a double-decker bus, and Salvo always tries to approach the pretty girls.

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.