Based on a famous Mexican legend, a group of kids must stop the ghost of a woman whose guilt over the drowning of her own children leads her to abduct youngsters who wander the woods at night.

Leo San Juan, an insecure child of nine years old, lives eternally frightened by horror stories that Nando tells his older brother. Within these stories it is ‘The Legend of Nahuala’, according to which, an old abandoned Casona is possessed by the spirit of an evil witch known as the Nahuala.