Faced with the insistence of his brother Joseph, whom he has not seen for 25 years, Paolo resolves to give up his calm and harmonious life in Canada, to return to Marseilles at the bedside of his rugged father. He left, therefore, with his son under his arm, determined not to linger in that city which he had fled years before, after a tragedy. He does not imagine that the affection of his newfound family, his love affair with a young woman and the joyful and simple solidarity of the Marseillais ...