Based on true stories, "La Riña" highlights the polemic of bare-knuckle fights at 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 on 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, sick elite in São Paulo.