A boy who has forgotten who he is arrives in a mystery house full of quiet shadowy children, all waiting for the arrival of the sinister Doctor. A new boy arrives at the Ash House. He can't remember his name - or why he's been sent there. Given the name Sol, and troubled by a mystery pain that no medicine can cure, he joins the gang of children living in the shadows of the secretive house. Soon, however, there's more for him to face: the darkness that descends with the arrival of the Doctor...