Lucy is preparing to go on vacation, but she has a change of heart when her substitute secretary turns out to be an attractive blonde who Mr. Mooney really likes. Lucy secretly doesn't go on vacation, and spies on them in various disguises.

Whe famous French movie star Jacques DuPre expresses interest in opening an account at Mr. Mooney's bank, Lucy is asked to visit his apartment and dictate a formal letter of agreement confirming the account. While visiting, she drinks a little too much champagne and makes a complete fool of herself. But Monsieur DuPre gets a kick out of it, and gets the account anyway.