When a composer is tasked with finishing her late mentor's concerto, she soon discovers that playing the music summons deadly consequences, leading her to uncover the disturbing origins of the melody and an evil that has awakened.
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.
