Edgar Allan Poe struggles with writer's block as his wife lies dying and he is unable to afford medical care for her. His thoughts turn to murder and madness... and his wife's black cat.

Jack, an American lawyer working in Tokyo, has fallen in love with the wife of his most valued client, Eiji. Despite Jack's deep-rooted fear of the sea, he reluctantly accepts Eiji's invitation to join the couple for a day trip on the Tokyo Bay. Pleasure turns to terror as they discover the watery destiny in store for each of them.