“Hello, Dolly!” is the story of Mrs. Dolly Levi’s efforts to marry Horace Vandergelder, the well-known half-a-millionaire, and send his money circulating among the people like rainwater the way her late husband, Ephraim Levi, taught her. Along the way she also succeeds in matching up the young and beautiful Widow Molloy with Vandergelder’s head clerk, Cornelius Hackl; Cornelius’ assistant, Barnaby Tucker, with Mrs. Molloy’s assistant, Minnie Fay; and the struggling artist, Ambrose Kemper, with Mr. Vandergelder’s weeping niece, Ermengarde.
Mrs. Levi tracks Vandergelder to his hay and feed store in Yonkers, then by train back to Mrs. Molloy’s hat shop in New York, out into the streets of the city where they are all caught up in the great Fourteenth Street Association Parade, and finally to the most elegant and expensive restaurant in town, the Harmonia Gardens.