It is a documentary about the memory of the transition to democracy in Spain built from certain pro ductions of militant cinema that contradict the official images that have formed our memory of the last years of Francoism and of the first years of democracy. "From the responsibility of memory", in the wards of Primo Levi, María Ruido deals with the construction of the historic memory of the Spanish state, but her approach it's not based on the recorded testimonies, but in the verification of the lack of images of certain events and problems.