The story of Agustin (Mortensen), a man desperate to abandon his unfulfilling existence after years of living in Buenos Aires. Following the death of his identical twin brother Pedro, Agustin sets out to begin his life anew by assuming Pedro's identity and returning to the mysterious Tigre Delta region where the brothers had spent their childhood. Soon after his homecoming, however, Agustin finds himself unwittingly embroiled in the deadly criminal underworld that his brother had been part of.