An aspiring composer and the wife of a powerful New York banker, Katharine "Kay" Swift attends a performance of Rhapsody in Blue by a brilliant, elusive young musical genius named George Gershwin. Transfixed, she's helpless to resist the magnetic pull of George's talent, charm, and swagger. In this novel, Mitchell James Kaplan draws from the true story of their ten-year love affair, complicated by Kay's conflicted loyalty to her husband and the twists and turns of her own musical career.