It's the Heart That Dies Last 2017 C'est le coeur qui meurt en dernier

At 47, Julien is an eternal misfit with no real job. But now that he has published an autobiography recounting his childhood memories, a complicated relationship with his mother and troubling family secrets, success is knocking on his door. Julien and his mother have cut ties a long time ago and she doesn't know about the book. Living a sad and miserable life in a retirement home, she renews contact with her son to make up for lost time. But is that all there is to it?