1) Juliette wants to sell her villa for 200,000 francs as she needs money and is tired of the place. 2) An agent sends a couple, Gaston and Jeanne, to look at the villa but Gaston is not interested in buying it. 3) While the women are upstairs, another customer, Mrs. Al Smith, mistakes Gaston for the owner and offers to buy the villa from him for 300,000 francs. Gaston is able to pocket the extra 100,000 francs for himself without any effort.