Payment on Demand (1951)

David (Barry Sullivan) gives his wife, Joyce (Bette Davis), an unexpected -- and unpleasant -- surprise when he suddenly demands a divorce. When she then learns that David has taken up with a younger woman, Joyce decides to make the most of this separation by taking a solo trip to the Caribbean. However, just before diving into a vacation fling, she runs into Emily (Jane Cowl), an old chum whose own divorce has left her embittered. Joyce then debates giving married life one last chance.