The murder of Jennifer Southern in her cottage on the outskirts of a Lancashire village re-ignites a legacy of witchcraft that was thought to have ended four hundred years ago when the Pendle Witches were hanged at Lancaster Castle in 1612. But their descendants have lived on, following the old ways and keeping themselves to themselves until now it seems someone is determined to wipe them out. As the death toll rises, events finally force the police to work with the modern-day witches in a bid to hunt down the killer.