To raise funds for the American effort in The Great War heiress Betty Hallowell decides to lease her beautiful country house to Mrs. Wentworth, a wealthy widow whose son Tom is recuperating from injuries received overseas. When Mrs. Wentworth suddenly demands the services of a maid for the summer, Betty, unable to secure a servant on such short notice, dons a dark wig and poses as "French maid Bettina." Tom and “Bettina” fall in love much to his mother’s dismay but when the deception is finally revealed all ends well.
Mark Truitt dreams of becoming a steel magnate, so he leaves his home in the country and his sweetheart Unity and settles in Pittsburgh. He starts out as a laborer in the steel mill but soon becomes a foreman and then a superintendent. Mark lives with the shop foreman, whose daughter Kazia falls in love with him. Truitt, however, returns alone to his hometown and builds his own mill. Wealthy now, he marries Unity, but money changes her, so the couple gets a divorce. In the end, Mark goes back to Pittsburgh, finds Kazia, who has never stopped loving him, and marries her.