Redhead Mary is a girl who dresses like a man to better approach, and rob the jewels worn by the pretty ladies of her time.

1760 Spain provides the setting for Giacomo Casanova's romantic escapades, every woman he encounters unable to resist his disarming charm, be they single, engaged, or even married.

Dante Fontana is an antique dealer from Perugia infatuated with the culture of the British upper classes. His wife and relatives mock him and snub him, seeing him as a silly daydreamer doing no serious work. Unfussed, Dante plans a vacation to London to learn more about the culture he so admires. However, once in London, he struggles to fit in, is awkward, often makes mistakes betraying his Italian origins, attracting the scorn of the British upper classes he would like to impress.

The relationships between a veteran marshal, his bride-to-be, a rookie and his fiancée are severely tested when the young carabiniere is temporarily sent to a distant town.