A scientist creates a time machine and kills their younger self to see what would happen. And that self-obsessed, misanthrope, mad genius of a scientist is Tim Travers. And the universe was bad enough with only one of him.
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.