Bing Crosby heads this heart-tugging post war drama of a grieving widower who is duped into forming an unbreakable bond with the French orphan he believes is his long-lost son. Crosby lost his beloved when the Nazis killed her for participating in the French resistance. Much later, Crosby is told that his son, who bears striking resemblance to his wife, is in a Paris orphanage. Despite the head nun's insistence that 8-year-old Fourcade is his boy, Crosby is skeptical and so tries to test the lad. When the boy fails the test, Crosby confronts the duplicitous sister who 'fesses up to her scheme and determination to see that her charges get good homes and happy lives. Though Crosby has come to love little Fourcade, he cannot get over his grief until he receives wise counsel from a very good friend.