El origen de la tristeza

This is the history of the Gavilan, a boy of just 12, who lives with his family in the neighborhood of the Viaduct, a port area. They are in the summer holidays and with his friends, spend their days on the street. Then, an explosion overshadows the neighborhood. The unexpected death of a friend and an unsuccessful plan to lose their virginity brings Gavilan and his friends close to some of the revelations life has in store for them...