Dorothea "Dot" Parker (Dorothy Mackaill) is a spoiled rich girl whose father invites a working stiff at his steel mill to dinner after the man saves several of his coworkers lives in an industrial accident. Dot's mother (Mary Carr) is a hopeless snob who wants to call off dinner with a worker she deems lower class, but Mr. Parker, who is a far better judge of character, persists.