When a city is terrorized by a sadistic serial killer, a seasoned detective and a newly recruited paramedic discover the key to stopping the bloodshed lies in unlocking the truth of their own haunted pasts.
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.