Mary and Mike travel together to Buenos Aires to perpetrate their first attack. The victim: one of the political enemies of Pinochet’s regime.

Mary receives a prestigious award for one of her stories. Meanwhile, Barrera is preparing a new lethal weapon to be used in Rome against another political adversary. An Italian terrorist visits Chile to perpetrate the next objective.

Letelier's crime has shaken the world and the regime suffers the first tumults of international pressure. Coinciding with the visit of the writer Jorge Luis Borges to the country, the US Attorney Eugene Roberts has traveled to Chile ready to take the murderer of Letelier with him, even without knowing who it is.