Ciara O'Dwyer is a young woman raising a daughter alone in the Five Points slums of 1870; Johnny McCormack is a struggling actor drawn to the nascent folk music movement in Greenwich Village 1960; and Lewis Healy is a successful Irishman who's come to present-day Manhattan on his wife's anniversary-present promise to reveal the connection between him and them. The mystery originates with Ciara's runaway husband, who disappeared after promising to join her in America, and carries into midcentury when Johnny, devastated by an unexpected romance and a lost shot at musical fame, gets a supernatural visitor