Lucio is a Literature professor of the prestigious University of Buenos Aires, in crisis and lost, he has requested a temporary license that keeps him away from his lessons. Unexpectedly and motivated by fulfilling a promise made in the past, Lucio accepts a proposal from his father who is undergoing treatment to recover from an illness. So he embarks on a new challenge: to teach literature temporarily in the Escuela 15 of Dock Sud a marginal area of the south of the Buenos Aires “conurbano”, neighborhood where Lucio was raised as a child and where Roberto, his father is a social reference of the community. Lucio must appeal to all his wits to carry out his classes and at the same time must cross his own limits and prejudices to try to save Dilan, his favorite student, who is chased by a narco group in search of revenge without knowing that his own destiny will depend in a crucial way on this adventure.