Paul Boudeaux shares lodgings with Richard Landers, his business partner, and Richard's young wife Matilda. Paul and Richard are in deep financial trouble, but when Paul's wealthy uncle, Batiste Boudeaux, comes to visit for a night, Matilda suddenly is inspired with a plan to save the business. Knowing that Uncle Batiste will give Paul $50,000 if the young man marries, Matilda introduces herself as Paul's wife, which greatly pleases the old bachelor. Complications arise, however, when Batiste decides to stay for a month, and the situation gets worse when early one morning, he sees Paul sleeping on the sofa and Richard stealing away from Matilda's room. Because Paul falls in love with Batiste's nurse Rose, the partners finally get their money, and even the old uncle gives up his bachelorhood by marrying fashion model Mme. Julie.