Life flows peacefully in Vinci: Leonardo is struggling with his incredible inventions, Lorenzo helps him and Gioconda observes them mockingly. When A mysterious storyteller comes to town and speaks of a hidden treasure, an adventure begins.

The Tuccis, a close-knit family of country bumpkins, become millionaires overnight. When word gets out, nagging neighbors and acquaintances force them to leave for the big city to start anew—and openly flaunt their newfound wealth. Soon they'll realize they ain't got the faintest idea how today's upper classes actually live.

After their rags-to-riches-to-rags-to-riches story, the Tuccis exploit a 19th-century legal loophole to turn their hometown into a tax haven.