Jonathan is a very lonely man. One day, he gets a visitor in his house: a young woman who, through a jarring turn of events, ends up dead. He does not report it because he is happy to have a friend, but now the body begins to decay.
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.