Al, married to Doris, gets a letter from his uncle saying that he will inherit a million dollars if he is still single. Instead of simply posing as unmarried, St. John and John Sinclair, his best man, decide to win George Davis' (Uncle George) sympathy for marriage. St. John poses as insane, his wife becomes his nurse, a friend is the keeper and the best man is the doctor. Uncle George is told that St. John's inability to marry because of the coming inheritance has driven him mad. Each time that love is mentioned St. John raises the roof. Then Uncle George capitulates and is told St. John has been married. The million dollar check is handed over. A stranger appears and takes "Uncle George" away, revealing the fact that he isn't Uncle George, but a lunatic escaped from a nearby asylum.