Zora has been described as an indigo since childhood, making her life always haunted and targeted by supernatural beings. Alongside her younger sibling, who is also an indigo, they strive to overcome their fear of these unseen attacks.
The lives of six girls belong to different worlds although connected to each other through a doll called Molly, whose existence dates back to 1976, when she appeared among the rubble of the great fire of the San Carlos orphanage, in northern Spain.