The narrative centers on Pierre, an elderly man who has chosen a life of solitude in a cave overlooking the sea. Passers-by often see him as a mysterious figure, unaware of the profound reason behind his self-imposed exile. Years prior, Pierre lived a humble life as a fisherman on a small islet with his virtuous wife and their son. Despite their efforts, their son grew into a man of ill character, bringing shame and sorrow to his parents.