After young Mary Gibson (Kim Hunter) discovers that her older sister Jacqueline (Jean Brooks) has disappeared, she leaves her boarding school and heads to New York City to track down her sibling. Arriving at Jacqueline's apartment, Mary finds ominous signs of trouble, with her sister nowhere in sight. 

The wedding of Ellen (Claudette Colbert) and David (Robert Ryan) is halted by a stranger who insists that the bride is already married to someone else.

Harry Morgan is the owner-operator of a charter boat in wartime Martinique. He falls in love with a pickpocket who wants to go to America and so to help her he does the impossible.Closed-Caption