Buenos Aires, 1977. The military dictatorship governs the country. Despite the political climate, 40-something office clerk Francisco Sanctis maintains a calm life with his wife and two children. Francisco's routine is disturbed one afternoon when Elena, an old college friend, calls unexpectedly saying she needs his authorization to publish a revolutionary poem he wrote long ago. When they meet, Elena confesses that the poem was an excuse. She gives Francisco an address and two names of people who are scheduled to be arrested by the army. It's up to Francisco to warn them. And so begins the long night of Francisco Sanctis. Should he try to save the lives of two people he doesn't know at the risk of his own?