Landladies Polly Smith and Marie Jones, who operate boardinghouses on the same side of the street, are afflicted with numerous petty envies and jealousies but nevertheless are the best of friends. Polly invests in the stock market and begins to reap rewards, but she is unable to persuade Marie to use her life's savings to buy shares of American Cheese or Brazilian Bananas. Meanwhile, Marie's daughter, Genevieve, and Polly's son, William, just back from college, fall in love; but an argument between the ladies breaks up the romance; and smarting under Polly's patronizing manner, Marie plunges into the market herself and with the winnings is able to stage a society splurge at a fashionable resort.

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