December bullies its way into the village in a swirl of snow and biting wind, threatening to cancel the annual St. Nicholas festival.  But winter's slap pales when a body is discovered in the candlelit church, and a series of arsons threatens the very village itself.  Someone is not living up to the seasonal wish of 'peace on earth, good will towards man.'  As life in the small Derbyshire village becomes precarious, DS Brenna Taylor and DCI Geoffrey Graham wonder if they are after two criminals: a murderer and an arsonist, or just a very disturbed individual.