For a year, the film follows the pianist Lucas Debargue through his encounters, his discoveries and his quest for music. In his early career, revealed by the XVth International Tchaikovsky Competition, praised by the public and critics, Lucas is confronted with the concerts that come one after another. He discovers the relationship with the conductor and music partners, studio recordings, post-concerts, success and autographs. He has now found his new life, a whole life devoted to music.