A charming little house on the Breton coast - the perfect place for a young Parisian writer to quietly work on her new novel. But one day, an old man suddenly appears in her living room and confidently strolls into the tool shed and the rose garden. What he, Monsieur Moustier, is looking for there remains a mystery - it's hard to miss that he is not pleased with the presence of the young woman. With a lot of patience and empathy, the new homeowner eventually manages to break the ice - giving both her life and that of the peculiar guest a completely new direction. The second life of Monsieur Moustier is a touching story about the wonderful power of friendship and the realization that it is never too late for a new life.