Don Ameche and Betty Grable star in this musical remake of the play THREE BLIND MICE. When an inheritance turns out to be worth a fraction of its initial value after taxes, Kay Latimer (Grable) convinces her sister, Barbara (Carole Landis), and her aunt, Susan (Charlotte Greenwood), to spend the money on a trip to Miami, where Kay hopes to land a millionaire for a husband. Once there, Kay's relatives pretend to be her servants and help her convince a bartender to obtain invites for them to the parties of the upper class. Kay quickly finds herself tangled up with two men, Phil O'Neil and Jeffrey Bolton (Ameche and Robert Cummings), the former turning out to be penniless while the latter only has eyes for Barbara. Meanwhile, the hotel bartender, who despises gold diggers, discovers that Kay and company are paupers who can't even afford the hotel bill and threatens to blow the lid on the trio of damsels in distress.