Married couples Day and Fanny Illington and Ferd and Ida Jackson spend their considerable amount of leisure time at their country club. An avid golfer, Day leaves Fanny alone for long periods, and she soon falls prey to Ferd's self-appointed companionship. At Ferd's suggestion, they attend an island "affinity" party for men and women neglected by their spouses. Ferd and Fanny are accidentally left on an island, but after they struggle back to the mainland, Fanny learns that husband Day and Ida Jackson have been having an affinity party of their own. Everyone realizes the error of their ways, and resolves that they were already married to the ones with whom they had the most affinity.—AFI