Johnny and his valet are in a bad predicament. Johnny is a rich and pleasure loving young man and one of his servants has taken sick. The doctor says she has a contagious disease and orders the house quarantined. Johnny decides to vacate the house before he is unable to do so because of the quarantine. But just as he and his valet are leaving a messenger arrives with a telegram. It is from his aunt and informs Johnny that she is coming to visit him and that she will bring a surprise with her. Johnny does not know what to do. Just then a friend offers him the use of his big house while he goes on a vacation. Johnny, of course, accepts gratefully. He goes to the home, but before entering he changes the street number tacked on the outside of the house to correspond with that of his own so that his aunt will come to the right house. In the meantime, his friend's butler has rented the house to a gang of fortune-telling crooks, hoping thereby to make a little extra money. Johnny does not know this and goes upstairs to await the arrival of his aunt. The fortune teller conspires to frighten Johnny and his valet away from the house. Johnny's aunt arrives and tells him she has brought along his boyhood sweetheart. The sweetheart overwhelms poor Johnny. She has grown fat, and weighs only slightly less than 225 pounds. But she still retains her loving disposition much to Johnny's discomfiture. The fortune teller and his gang try to frighten Johnny from the house. He tries to leave but finds that the quarantine officer has mistaken that house for Johnny's on account of the change of number. Consequently, Johnny is forced back into the house. There is a great mixup, with ghosts, weird noises and much excitement until everything is finally straightened out.
—Press Sheet from Library of Congress