One evening in 1924, Katharine "Kay" Swift--the restless but loyal society wife of wealthy banker James Warburg and a serious pianist who longs for recognition--attends a concert. The piece: Rhapsody in Blue. The composer: a brilliant, elusive young musical genius named George Gershwin. Kay is transfixed, helpless to resist the magnetic pull of George's talent, charm, and swagger. Their ten-year love affair, complicated by her conflicted loyalty to her husband and the twists and turns of her own musical career, ends only with George's death from a brain tumor at the age of thirty-eight. Set in Jazz Age New York City, this stunning work of fiction, for fans of The Paris Wife and Loving Frank, explores the timeless bond between two brilliant, strong-willed artists. George Gershwin left behind not just a body of work unmatched in popular musical history, but a woman who loved him with all her heart, knowing all the while that he belonged not to her, but to the world.