Jerry Simpson and Tom Bradford are two happy-go-lucky chaps with a weakness for pretty faces and the fact that they possess two beautiful wives does not restrain them from indulging in their flirting propensities. Mrs. Bradford and Mrs. Simpson, who are sisters, receive a letter from their mother, inviting them to spend a Sunday at their country home. After consulting a timetable, they decide to take the 5:15 train. This is very much to the satisfaction of their husbands, who are more than pleased to be relieved of their wives' presence for a short time so that they may indulge in a little harmless frivolity. Tom and Jerry in arriving at their office receive word by letter that their French model, Madame De Luxe, has arrived in the city. Her husband, Count De Luxe, is somewhat irascible and objects to a sudden departure to the office of her new employers, Bradford and Simpson, but, nevertheless, she at once departs, and her French beauty and chic ways secure for her a hearty welcome. Jerry, knowing that his wife is to have the city that day, extends the Madam, an invitation to visit their apartments, under a pretense that they have a number of new costume plates which they desire her to look over. With a reluctance she consents. Mrs. Simpson and Mrs. Bradford leave for the train, and fate decrees that they meet Madame De Luxe in a tie-up on the boulevard. Madame De Luxe arrives at the home of Jerry Simpson and is received with open arms, while the wives of the gay deceivers arrive at the railway station to learn that the 5:15 train does not run on Saturday. Jerry has ordered an informal lunch with sparkling wine as an adjunct, and in his excitement has overlooked hanging up the receiver which leaves the telephone lines of the apartment closed. The wives decide to take the 7 o'clock train and also decide that while waiting they will call up their loving husbands. They are unable to receive an answer to their call and Mrs. Simpson becoming suspicious, determines to return home and investigate. In the meantime, Tom and Jerry are entertaining their French model royally, giving no consideration to their wives or to Count De Luxe, who is in a rage at the Madame's prolonged absence. The Count discovers a card with the address of Jerry Simpson, and being of a jealous disposition, hurries to seek vengeance on the destroyers of his peace of mind. In the midst of Tom and Jerry's tete-a-tete with Madame De Luxe, the wives arrive and in the endeavors of Tom and Jerry to rid themselves of the danger of their position, complications follow one upon another. The Madame is hidden and Jerry feigns sickness to disarm the wives' suspicion, but they do not count upon the numerous accidents which happen to disclose their unfaithfulness. The Count De Luxe arrives at their apartment, discovers his wife's coat, and realizes that he is also deceived. He vows vengeance and later returns with his child which he forces Tom and Jerry to retain. In their anxiety to relieve themselves of this new burden, they hide the baby in the clock. The wives hearing the cries of the infant soon discover the hidden treasure. Madame is also brought to light and when Count De Luxe, seeking vengeance, enters with a lighted bomb to blow his supposed rival into eternity the story is brought to a climax with many laughs.