Lucy and Mr. Mooney are sent to pick up Mr. Heatherington, the wealthy bank president, from the airport, and the gentleman finds that Lucy strikes his fancy. So when Mr. Mooney neglects to find a lady for Mr. Heatherington to escort to that evening's banquet, Lucy is given the job. But to her dismay, she's forced to dress up as a little old lady. As it turn's out, little old Lucy strikes perverse Mr. Heatherington's fancy more than the younger Lucy...
Mr. Cheever's wisecracking nephew, Tommy (Frankie Avalon), comes to work at the bank, to discourage him from the position he really wants – a job in show business. Despite the fact that he's to get no special treatment, Mooney repeatedly sucks up to him. Lucy soon befriends the young Cheever, who impresses her with a song and dance. So Lucy sets out to break Tommy into show biz...
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.