Santiago, Chile. 2005. Sandro Gaete, head of the Human Rights Brigade of the Investigative Police, is in front of a group of young detectives giving the most important speech of his career: that day they will detain Manuel Contreras, the leader of the repression from the darkest years of the Pinochet dictatorship, who, until then has been enjoying total impunity. It is, what seems to be, the end of a long road that Gaete began many years ago, when he was proposed to hunt down the culprits