The story of a marriage is at the center of this intimate and nostalgic work by Harvey Schmidt and Tom Jones, the authors of The Fantasticks. The show begins with Michael and Agnes on their wedding day and traces their life together over a period of 50 years, until the day they leave their house to the next pair of newlyweds, all set lovingly to the strains of a tuneful, charming score which includes the standard, “My Cup Runneth Over.”