Synopsis: Pierre Mounkyake Perrin, a world-famous conductor, returned to his hometown in France to attend his mother's funeral. His old friend Pepineau (Didia Ferragamo) gave him an old diary and looked at Clemente, the old music teacher. In the diary left by Matthew (Clemente Matthew, Gerald Juno), Pierre slowly savored the teacher's state of mind, and scenes of childhood memories came to his memory ... Clemente was a brilliant musician, but in the French countryside of 1949, he didn't have the opportunity to develop his talents and eventually became an assistant teacher in a boarding school for men. This school has one. After his arrival, Clemente found that the headmaster of the school (Fran? ois Berlin) ruled this kind of problem of juvenile by cruel and high-handed means. Corporal punishment is very common here. The taciturn Clemente tried to improve this situation in his own way. In his spare time, he will write some chorus songs, but to his surprise, there is no music class in this boarding school. He decided to open the students' closed hearts with music. Matthew began to teach students to sing, but things didn't go well. One of the biggest troublemakers is Pierre Moank. Pierre has an angelic face and singing voice, but he has a troublesome and naughty personality. Clement, who is good at persuasion, discovered Pierre's musical talent and had a delicate relationship with Pierre's mother.