The man was in a ship that was wrecked on a desert island. When there was no 食物 left, another passenger brought what he 说 was 鹈, 鹈鹕 but was really part of the man's wife (who had died in the wreck). The man suspects something fishy, so when they finally return to civilization, he orders a 鹈, 鹈鹕 sandwich, realizes that what he ate before was his wife, and kills himself.