Broken hearts in Ireland. Sean is a great tenor, in semi-retirement, living in a village close to Mary, the woman he’s always loved. Mary’s aunt convinced her to marry a man for his money; he has recently deserted her, leaving her penniless. She and her two children, Eileen and Tad, move in with the selfish and austere aunt. Eileen is falling in love with Fergus, a young man who’s off to Dublin to seek his fortune. Sean is drawn out of retirement and goes on tour in America. At his first concert, he’s nervous and out of sorts until the last song, when peace descends on him like a gift. What has happened, and can family life be set right?

"La canción de mi alma" tiene como protagonista a un tenor, interpretado por el entonces famoso cantante John McCormack, que sale de su retiro para ayudar a la familia de su antiguo amor. También es la historia de un hombre enamorado de una mujer a quien no pudo desposar años atrás porque ella fue obligada a casarse con otro por dinero.