 The Ricardos are invited to a country club dance by their friends, the Munsons. Ricky balks at having to dress up and go out when he d much rather stay home. The Ramseys and the Mertzes gather at the Ricardos and the evening is off to a dull start. The guys have a good moan about what lies ahead for them. However, when the Munsons arrive with their house guest, sexy cousin Diana Jordan in tow, the men get a shot in the arm. The gallant trio of husbands argue about dancing with Diana, while their wives look on in disbelief and dismay. The same crowd assemble at the club the next evening, but the three suburban housewives give Diana a run for her money, what with new hairstyles,  exotic  perfume and Lucy, in a very tight dress. The boys are very attentive to their wives, Lucy becomes suspicious, leaves the gathering with Ethel and Betty and the battle of the sexes rages on.