The sudden appearance of hundreds of thousands of photographs makes known the faces that inhabited a mining valley for five decades. In the meantime, a group of young girls, three retired workers and an expert archaeologist work in isolation from each other to preserve the memory of their forebears. They do not know each other and their motivations do not coincide, although they do know that indifference will be the greatest public recognition they will obtain with their efforts. Why should they do this, then? What reward do they get? What is the point of taking care of memory?