A fire started by Harry Thompson destroys the Liguria, a legendary ship of the 19th century, and its treasure of gold and diamonds sinks in the sea. Thompson manages to escape unaware that Albizetti sleeps in the same lifeboat he uses. They manage to arrive at a deserted island, which has also been reached on the opposite shore– by the other survivors of the shipwreck: three children, a woman and three men.
One woman lives waiting for her son who is a sailor. She hasn't seen him for years although he writes to her a lot. The woman shares the letters and her grief with a co-worker and friend. This last woman begins to idealize her friend's son.