While having dinner with Vivian at a restaurant, Maude spots Vivian's ex-husband, Chuck, who has been enjoying living the swinging single life. When Chuck invites Vivian to his hotel room, Maude tries to prevent her best friend from having an affair, only to find Chuck could easily take her instead.

Walter accompanies Arthur on a trip to Pittsburgh to attend a medical convention. As a joke, Walter poses as a doctor at Arthur's convention. However, his "medical expertise" is called for in an emergency, when a handyman begins to have a heart attack in the hotel room.