In the sun-scorched, claustrophobic town of Campoamargo, Almería—a region defined by a vast "sea of plastic" greenhouses—the brutal murder of Ainhoa Sánchez, the town mayor's daughter, ignites a powder keg of racial, economic, and social tensions. Newly arrived Civil Guard Lieutenant Héctor Aguirre, a veteran battling his own psychological demons, takes charge of the high-stakes investigation. As Héctor peels back the town's polished veneer, he enters the orbit of Juan Rueda, the wealthy, tyrannical greenhouse magnate whose cold marriage to his younger Russian trophy wife, Agneska, is rife with mutual disdain and hidden indiscretions. When the forensics reveal that Ainhoa was actually Rueda's illegitimate secret daughter, the web of suspect local laborers, radicalized youths, and powerful landowners transforms into a dangerous maze of domestic betrayal, historical grudges, and systemic corruption.