 Poppy, daughter of carnival medicine salesman Professor McGargle, falls in love with the Mayor s son. Countess Maggie Tubbs DePuizzi is claimant to the Putnam estates, but McGargle and lawyer Wiffen plot to make Poppy claim the fortune. Wiffen and the Countess double-cross the Professor, but kindly Sarah Tucker notices a resemble between Poppy and the deceased Mrs. Putnam. It turns out that McGargle adopted the girl, she is the rightful heir, the purported Countess is only a showgirl, and every one has a happy ending.