The Light in the Piazza is a musical with a book by Craig Lucas and music and lyrics by Adam Guettel. Based on the 1960 novella by Elizabeth Spencer, the story is set in the 1950s and revolves around Margaret Johnson, a wealthy Southern woman, and Clara, her daughter, who is developmentally disabled due to a childhood accident. The two spend a summer together in Italy. When Clara falls in love with a young Italian man, Margaret is forced to reconsider not only Clara's future, but her own deep-seated hopes and regrets as well.