L’enfant de l’aube 2003 on netflix

At the age of 16, Tristan falls in love with Camille in a sanatorium where they are both nursing their asthma. Camille eventually dies, leaving Tristan alone with their son Alexis. The young father is faced with a great responsibility and decides to take matters into his own hands by working and studying literature to write a novel. He falls in love with Gaëlle, his literature teacher.