AllMovie

Amy Yasbeck joins the Wings cast in the role of Casey, the snobbish, annoying "perfect" older sister of Helen Chappel (Crystal Bernard). Casey's sudden arrival on Nantucket effectively scuttles the plans conceived by Joe (Tim Daly) to spend a romantic evening with Helen. Irritated beyond measure, Helen squares off against Casey for the first time in her life -- and receives the surprise of her life when Casey reveals why she's on the island.