 He's willing to do so, on one condition - for the next 24 hours, his niece must answer "no" to every question she's asked.Comic complications ensue when the cast arrives at Nanette's estate to rehearse; and composer and pianist Jimmy Smith (Gordon MacRae), who has romantic designs on the girl, falls victim to the bet she's made with her uncle.Nanette wins, only to discover Uncle Max has lost all his money in the stock market crash.