A small town family is torn apart by a brutal crime. As they deal with the fallout an eerie mist rolls in, suddenly cutting them off from the rest of the world, and in some cases, each other.

In the last years of Victoria's reign, London is beset by the "Touched": people — mostly women — who suddenly manifest abnormal abilities, some charming, some very disturbing. Among them are Amalia True, a mysterious, quick-fisted widow, and Penance Adair, a brilliant young inventor. They are the champions of this new underclass, making a home for the Touched, while fighting the forces of… well, pretty much all the forces — to make room for those whom history as we know it has no place.