March in Montreal: it is a bitterly cold night and in the eerie silence of an old church forensic anthropologist Dr Temperance Brennan digs carefully. She is there to exhume the remains of Sister Elisabeth Nicolet, a nun who died in 1888 and is now proposed for possible sainthood. But the body has been moved to an unmarked grave in a far corner of the cemetery. Why have the nun's remains been disturbed? And what will Tempe discover when the frozen ground finally yields to her tools and she lifts the rotting coffin lid?
Then, just hours after she has returned home, Tempe is called to the scene of an horrific arson. A young family has perished in mysterious circumstances, and in the terrible aftermath of the inferno there seems to be no witness, no motive, no explanation...
From the charred remains of the arson, to a trail of sinister cult activity in the Carolinas and a terrifying showdown during and ice storm in Montreal, Tempe gathers her evidence and confronts the terror of a killer out of control.
"Another day. Another death. Death du Jour. My God, how many such days would there be?"