Mrs. Henry Van Zandt decides to give a bridge party and invites her dear friend, Mrs. Studyvesant. At the same time Mrs. Van Zandt writes a letter to Bridget O’Grady, telling her to come and do the washing. In mailing the letters, the invitation is placed in the washwoman’s envelope and the note to the washwoman in Mrs. Studyvesant’s envelope. Bridget is delighted with the invitation, while Mrs. Studyvesant becomes indignant. Mrs. Van Zandt calls Mrs. Studyvesant up on the ‘phone and apologizes to her for the mistake. Bridget goes to the party; the hostess humors her. What is their surprise when Bridget captures the prize, an electric automobile. Many amusing situations take place in Bridget’s handling the new vehicle, which will keep an audience convulsed with laughter.