A rich heiress falls in love with a medical student despite being engaged to a foreign prince.

Lady Gwen, the last of the sporting Grayles, falls in love with Donald MacAllan, a bright young medical student far below her station. Gwen's father opposes the match and introduces her to Prince Carlos, who wishes to marry her in order to pay off his creditors. Donald enlists during the World War, and Carlos continues his courtship. When Donald returns, he learns that Carlos is engaged to Gwen, and therefore makes no attempt to see her. Gwen mistakes Donald's seeming indifference for contempt and seeks to forget him by living riotously in several European capitals. Having exhausted her fortune and ruined her health, Gwen returns to Scotland and lives in the same cottage where Donald used to study. She becomes ill and in her delirium calls for Donald. Her old nurse fetches him from the Grayle estate, which the wealthy young doctor now owns. Gwen wanders into a storm, but Donald comes to her rescue and nurses her back to health.—AFI