Barbara and Dr. Charles Ashe of Cleveland, an attractive couple with two young children, join the summer 1984 European Capitals tour as their long-delayed honeymoon. Sonya and Michael Clarke, of New York, hoping to revive their floundering marriage, join the tour as well. The tour for all of them veers off course in Paris when Dr. Charles and Sonya ditch Barbara and Michael just as they are to leave for Rome.