While local authorities dismiss the ongoing disappearances in a sunbaked Mexican hamlet as simple runaways, a rebellious teenage outsider teams up with a skeptical urban social worker, determined to expose human culprits exploiting the infamous La Llorona myth for their own twisted agenda. As they probe the rotting secrets beneath the rituals and mass hysteria, relentless nightmares and ghostly apparitions blur the line between myth and manipulation, leaving them to question whether the greatest evil is supernatural, or human deception itself.