Spain, 1876. The last days of the Third Carlist War that started in 1872 to get the throne of the country. In an undetermined valley of the Basque Country (north to the country), a church used by the nuns as orphanage for ladies (little girls abandoned by their parents) is destroyed during a bombing, killing the nuns and the girls but one, who is approached by a stranger woman claiming to have the power for healing her if she promises to stand at her side forever. She accepts to be saved, turning in a vampire by the woman who takes the girl as her own daughter, with the girl naming her Mother. Meeting to the rest of the vampire coven, Mother teaches the girl to move in the night, to feed of the dead soldiers' blood and avoid the day and sunlight. However, a group of villagers of a close town looking to kill the vampires find the nest where they hide, and in the runaway the girl falls by a cliffhanger. Alone in the forest, the girl not only learns to survive by herself hunting animals but exposes slowly her ...