Based on true stories, "La Riña" highlights the polemic of bare knuckle fights in a playboy party where drugs and drinks are served on silver trays. This secret party is thrown by ex-students from the American school who bet fortunes in poor wrestlers confronting each other inside an empty swimming pool for a few dollars. Instead of showing poverty in Brazil, "La Riña" unveils the opposite by unmasking a luxurious and sick elite in São Paulo.