Paola Santiago is a science-loving skeptic who thinks her mother's warnings about the Gila River are just superstition. But when her best friend Emma disappears near the river, Paola discovers a terrifying world of Mexican and Latin American folklore is real. She must team up with her rival Dante to navigate a realm of vengeful spirits and face La Llorona, the legendary weeping woman, to save her friend. This adventure forces Paola to reconcile her logical mind with the magical truths of her heritage.