The documentary film by director Bartomeu Vilà relives the experiences of one of the last cinematographers of the Republic, Joan Mariné, exceptional witness to a moment in the history of Catalan cinema that, despite the economic precariousness, the lack of means and the difficult international circumstances, was characterized by its high production, never surpassed, and its innovation in forms and contents. Through the memories and experiences of Joan Mariné (Barcelona, ​​1920), the documentary takes a tour of the films he filmed during those years of contention, both with the Sindicat d'Espectacles de la CNT/FAI, and later with the production company of the Republican Generalitat, Laya Films.