Pilar, three months pregnant, arrives at the Sanctuary. A pristine place, shielded from pollution, where she must stay for her baby's well-being. Yet Pilar quickly suspects something is being hidden from her.
With the help of Valle, the center's psychologist, Pilar tries to resolve her doubts. She is confused. Some things don't align with her memory. After confiding her concerns about the Sanctuary to Rocío, everything becomes more complicated.