Santiago, Chile, 1984. Carmen, a former member of a communist youth movement, becomes an undercover agent for the same Intelligence Agency that tortured her under Pinochet's dictatorship. Her superior infiltrates her in an advertising production agency where she meets Gastón, the creative director, who plans to smuggle a political prisoner out of the country using an advertising shoot in the mountains as a front. Carmen fiercely seeks to become part of this operation to achieve her own escape.