Two couples and their single friend deal with the complications of dating, promise and marriage. It portrays different interpersonal relationships in various stages, starring Patrick Warburton and Megyn Price as a long-married couple, Oliver Hudson and Bianca Kajlich as newly engaged sweethearts, and David Spade and Adhir Kalyan (the latter added in season 3) as their still-single friends. They often meet at "The Island Diner."