The movie opens as the two protagonists Rodrigo and Rocco join their families to hold a birthday party for their grandfather Rodrigo Carnicero which through most part of the movie is only referred to as El abuelo Spanish for Grandpa Rodrigo is a regular middleclass teenager while Rocco who in fact is also named Rodrigo but shortens his name to Rocco is rather more unconventional a marijuana user and indie magazine writer and has deep conflicts with his father Luis