Tommy Bradford, a travel agency clerk, dreams of going on all of the romantic trips he sells. June Evans, a model at Maurice's exclusive dress shop, also has dreams of travel and riches. When they meet at the wedding of millionaire J. Westley Piermont's daughter Nadine, because both are doing special errands, each thinks that the other is rich and cultured. Piermont, who is very forgetful, doesn't remember where he has met Tommy or June, and thus can't dispute Tommy's claim to be a foreign correspondent, or June's indication that she is a debutante. At home that evening, June, who lives with her mother and three brothers in a small apartment, is pressured by her brother Chick to call Tommy, whose number is in her purse. Because she is reluctant, Chick retrieves the number and places the call, pretending to be June's Chinese butler. When June finally comes onto the phone, Tommy asks her out. Because Tommy is broke, his roommate Al suggests that a dog show would be the perfect date, because it is "social," and also cheap. At the show, they run into Piermont, who has two dogs entered, one a St. Bernard. Because Tommy has memorized a lot of information on St. Bernards to sell tour packages to Switzerland, he impresses June, as well as Piermont, who says that if the St. Bernard wins instead of the other dog, then Tommy may have him. When the St. Bernard does win, Piermont insists on giving the dog to Tommy who, in turn, gives the dog to June. Something that Tommy says that evening makes June think that he is the son of a millionaire horse breeder, and when he mentions that Ebony Star is a good bet, she passes on the information to her horse-playing brother Steve. Sometime later, at a bookie parlor, Al, who coincidentally is a crony of Steve's, bets two dollars for Steve, and twenty for himself at eighten-to-one odds. When the horse wins, a joyous Al calls Tommy to say that he will buy opera tickets so that Tommy can show June a classy time. Waiting in the bookie's, though, Al loses everything on other bets. Meanwhile, to help her niece, June's Aunt Lucy, a cook for a Park Avenue family on vacation, suggests that June's family host a dinner party at her employers’ swank apartment to entertain Tommy. Following various additional complications to their respective shams, June and Tommy fall in love. On the day of the dinner party, Steve swipes the rich family's silver and gives it to Al as collateral for a bet on Ebony Star, thinking that he will get the silver back in time for dinner with Tommy that evening. However, when the horse loses, Al pawns the silver to cover the bet. During dinner, while everyone tries to outdo one another with tales of wealth and accomplishment, Aunt Lucy realizes that the silver is gone and, thinking that it has been stolen, calls the police. Soon the police arrive at the apartment with the silverware and the suspected thief, Al. A bewildered Al then says that Steve gave him the silverware to pawn, and Lucy, who now recognizes Tommy as an employee of the travel agency that her employers use, realizes what has happened. After Steve convinces the police that Al is a kleptomaniac, Tommy admits to June that he is really just a working man, and they live in different worlds. Rather than believing him and confessing her own fraud, though, June thinks that he is just trying to drop her and tells him to leave. Both June and Tommy are miserable until Aunt Lucy tells June that Tommy is merely a clerk at the travel agency. June then goes to the travel agency, with the St. Bernard in tow, and makes the humiliated Tommy treat her as a wealthy prospective client. When she leaves, Tommy angrily follows, then sees her get into one of Maurice's vans and realizes that she is not a debutante. Tommy then goes to Maurice's and, pretending to be a wealthy customer, insists that June model clothes "for his fiancée." Finally even, Tommy then waits for June in the delivery van, where they begin a new, more honest relationship.