Silas Pettingill strikes oil and becomes immensely wealthy. His wife Maria and their daughter Helen demand that they move from their middle western home to a mansion on Fifth Avenue, New York. Even then they are dissatisfied, for they have so fashionable friends. Helen is constantly reading books about royalty, and she bewails her fate because she knows no lords or earls. Silas wearies of their complaints. He goes out and makes friends with a taxicab driver, as agreeable young man named Hubert Stanwood, and as the hour grows late, takes him home with him to bed. In the morning Mrs. Pettingill demands to know who the stranger is. Not daring to tell her he has brought home only a chauffeur, he introduces Stanwood as Count Erfitt. Mrs. Pettingill runs to tell Helen the glad news, and they plan a series of social functions to introduce Stanwood as Count Erfitt. Mrs. Pettingill runs to toil Helen the glad news, and they plan a series of social functions to introduce their guest. Soon the "Count" is seen everywhere with Helen. He does not want to pose under false colors, but Pettingill implores him not to let them know that he has deceived them. At a tea dansant they met Macklin Thurston, who is introduced to them as the Earl of Bradwood. Stanwood starts when he hears the name, for his own grandfather is the heir. He does not know that bot have died, and that Thurston, discovering that the second son, Hubert, has been missing for several years, has appeared as a false claimant for the title. Stanwood decides to way nothing, but to investigate. Thurston is really the proprietor of an international employment agency. He uses this position to supply Huntington Lodge, the Adirondack home of the Pettingills, with two servants, Rita and Dugan, who are clever crooks. Both Thurston, as the Earl, and Stanwood, as the Count, are invited to a house party at the Lodge. Helen and Stanwood have fallen in love with each other at their first meeting. Stanwood proposes, and Helen accepts him. But Thurston tells Rita she must find a way to compromise Stanwood. She does so, and Helen breaks her engagement to Stanwood, and announced her engagement to Thurston, known as "the Earl." Stanwood engages a detective to unmask Thurston, but he has manufactured credentials, and Stanwood himself is unmasked as a false count by a man who knew him as a chauffeur. Helen orders him to drive her guests back to their hotel from the lawn fete that is in progress. Thurston goes to Helen's room and tries to persuade her to elope with him, but she refuse. Under cover of night, Rita and Dugan attempt to steal Helen's jewels. Stanwood returns in time to prevent them, but he is injured in the struggle, and when Helen enters she thinks it is he who is the thief. Still loving him, however, she urges him to escape, but the real thieves are apprehended. Detective Burke is about to take both Thurston and Stanwood into custody, not knowing which one of them is the tales Earl of Bradwood, when the lawyer arrives from New York and identifies Stanwood as the genuine Earl. Thurston is led away, and Stanwood and Helen, soon to be Lady Bradwood, are reunited.