Two estranged brothers come together and discover old family secrets after inheriting their grandfather's property. As their friends start to go missing, they fear they are being stalked by a creature lurking in the shadows.
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.