Kay and Barbara Latimer (Grable and Landis) are working at a singing drive-in in Texas, but they quickly forget work when the mailman pulls up. Apparently the sisters have been waiting for a letter telling them how much their Aunt Susan (Charlotte Greenwood) has inherited from a dead relative. The three ecstatically read that they’re now $55,000 richer! But then they read on and realize after taxes and other fees, they’re left with just $4,000. The girls were counting on that money to allow them to quit their awful jobs and live in luxury, but once they get this news, Kay insists they go for her back-up plan: they’ll use the $4,000 to go to Miami and pass her off as a wealthy woman so she can snare a millionaire, while Barbara poses as her secretary and Aunt Susan her maid.
The first night they’re in Miami, one of the hotel’s waiters, Jack (Jack Haley), brings the trio a bottle of champagne. It seems that the rich Mr. Jeff Bolton (Bob Cummings) is throwing a party and he’s giving champagne to all the hotel guests. The second Kay hears this, she calls Mr. Bolton, but not to thank him for the bottle—instead, she chastises him for gifting her with flat champagne! It’s an effective tactic, and within a minute, Jeff comes over and invites Kay to join his party. The girls are thrilled, but there’s one Latimer girl in particular who’s already getting stars in her eyes over Jeff.