Pozzetto is a rich man obsessed by the idea of becoming poor. So, his psychiatric suggests him to leave home and live just like a poor man for some days. He will then become familiar with this way of living, and fear less the idea of becoming poor. So he does, and his old family & friends soon forget about him. They don't miss him at all.

Cristina is a rich, spoiled princess visiting Rome with her royal parents. The mission of their visit is to marry her off to a super-wealthy corporate type and thereby start to turn around the losses their small kingdom is experiencing in its casino business. These less-than-noble intentions get derailed when Barnaba, a zany bus driver enters their lives and falls madly in love with the gorgeous Cristina. He is nuts enough to succeed in this romantic chase after royalty, as love seems to fuel his determination to rid Cristina of her elitism and to make her see his own irrepressible attractions.