When a new teacher arrives at school he finds students that are extremely well behaved and soon uncovers a special class of very young children forming a hive mind, keeping the students and teachers calm and focused with murderous results.
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.