A young librarian at an all girl school appropriately named Prudence (Susan Pleshette) is reprimanded for recommending a racy, controversial book about love. She decides to head for Italy, the romance capital of the world. There she meets Roberto (Rossano Brazzi), who is more than willing to be her tender hearted tour guide. She meets Don (Troy Donahue) an art student with a pompadour and a motorcycle. Don has eyes for dear Prudence, but must get rid of his old girlfriend Lyda (Angie Dickinson). All the action takes place on a colorful tour throughout Italy.