In 1983, a group of High School students in a day of detention must run for their lives when a teacher in a wheel chair turns out to be an ex black ops soldier having a murderous flashback.
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.