My Heart Belongs to Daddy

Gary is visited in his shop by a shabbily-dressed middle-aged man down on his luck and out to sell some wartime items. He tells Gary he resembles his father who disowned him after doing time in prison. Gary is horrified to see that this is his son Michael. He goes back in time and allows Noel Coward to publish one of his songs and put the royalties into a trust fund for Michael. Next day Michael returns to the shop but he is prosperous, happily married and living in New Zealand.