As far as Diana is concerned Christmas is all a lot of humbug and lets everybody know it. When Sister Sheila, arrives, Tom guiltily pretends that Diana is his wife. Sister Sheila, however, is less concerned with Tom's marital status than with getting Diana to direct a play for the elderly of the parish. Meanwhile, after a blow on the head, Harvey undergoes a complete personalty change and at long last asks the devoted Jane to marry him.