When Antón Álvarez, C. Tangana, meets Yerai Cortés, he is fascinated by his talent and intrigued by his family history. Yerai is an unusual figure in flamenco, respected by both the more traditionalist Roma and the avant-garde artists of the new wave to which he belongs. They decide to embark on a journey together to record an album whose songs are marked by a great sadness, where the artistic process itself confronts him with his past and drives him to explore a family secret through which he tries to redeem his relationship with his parents. The result is a film that develops a unique musical experience to immerse us in a story of passion, love and forgiveness.