Alice Brady stars as a raucous railroad camp cook who suddenly inherits a fortune. After a whirlwind grand tour, she decides to invade Long Island society where her genteel niece (Anita Louise) is getting snubbed from the society lions because she has no "background." Brady has a field day as the outspoken "lady" who gets the goods on the snooty bunch of Long Islanders with the help of her trusty lawyer (Alan Mowbray) and her own common sense.
Film co-stars Douglass Montgomery as the society boy, June Clayworth as his snotty pal, Hedda Hopper as the society leader, Minor Watson as the railroad man, Harry Tyler and Walter Brennan as the long-lost relatives, and Clarence Wilson as the passerby.
Character of Lady Tubbs is a bit of "Auntie Mame" and "The Unsinkable Molly Brown" as Brady becomes a lady and is forced to join a fox hunt. One wonders if Patrick Dennis saw this film as a child and remembered it for his Auntie Mame character.