Upon striking oil on his farm, Silas T. Pettingill (Charles Eldridge) moves to Park Avenue at the behest of his social-climbing wife Maria (Kate Blancke) and daughter Helen (Emmy Wehlen). But like Jiggs in the comic strip, Pettingill never loses his common touch, and one evening he goes out on a toot with his new chauffeur Hubert Stanwood (Paul Gordon).

The film opens in Ireland, as a dying Patrick McNairne tells his daughter Jerry to go to New York and look up Norton Burbeck, a wealthy young man whose life Patrick had saved some time earlier (the surviving print, largely complete, lacks the second page insert of a letter explaining the full background). The affable Burbeck is due to inherit his uncle’s fortune provided he’s married by November; if not, the inheritance will go to his cousin Howard Curtis. An adventuress, Beatrice Gaden, and her husband Dick are in cahoots with Curtis: Beatrice pretends to be single in order to string Norton along up to the November date, at which time Curtis will come into the money and give a share to his unscrupulous partners.

Broadway star Mona Mainard retires from the stage for marriage to rising attorney John Norton and watches his career climb. Over time she becomes concerned with his at times unscrupulous ways of getting convictions. When her brother is accused of murder Norton refuses to give up the case despite being aware of his innocence because a victory could land him the governorship. Mona takes extreme steps to bring him to his senses and exonerate her brother.