When Diego Luna (Toluca de Lerdo, Mexico, 1979) was just two years old, his mother, the artist and set designer Fiona Alexander, died in a car accident. Upon reading Brenda Navarro's novel Ceniza en la boca (Sexto Piso, 2022), the actor and director recognized the echo of his own experience in a character as different from him as Lucila, the Mexican teenager who migrates with her younger brother to Spain –first to Madrid, then to Barcelona– to reunite with the mother who abandoned them eight years earlier. But above all, he was fascinated by the clash of perspectives: “The daughter sees her mother's departure as an act of abandonment, but the mother feels she is making a great sacrifice for her children. As a father, I cannot stop thinking about how painful it must be to live away from one's children and start from scratch in another place. But I am also a son, and the absence of the maternal figure is a subject that has occupied my thoughts every day of my life”.