A private investigator is forced into a dangerous alliance with a killer. They will try to uncover a quiet town's grisly criminal underbelly and clear the name of her mentor, who is implicated in the crimes.
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.