Captain Jakob Störr is on shore leave. In a café he announces that he will marry the next woman who enters the establishment. It is Lizzy, an inscrutable beauty. Surprisingly, she agrees to Störr's proposal - but his happiness does not remain unclouded for long. Again and again he is at sea for weeks, wondering what the fun-loving Lizzy might be up to when he is not around. The captain gets increasingly lost in a labyrinth of passion and jealousy, is torn between heartfelt love and mistrust...