Irene Dunne delivers a wonderful performance portraying “Susan,” a young American woman who journeys to the UK alongside her curmudgeonly but good-hearted father, Frank Morgan, embodying his "Wizard of Oz" persona as “Hiram.” Upon arrival, she attends an elegant ball where she encounters and becomes enamored with "Sir John Ashwood," played by Alan Marshal, leading to a rapid romance. The narrative then follows her st…