Keira lives in an alternate London where city guards uphold the law out of brutality and fear, and demons roam the night.
Out of jealousy and hate Keira destroys the life of a young girl. Her punishment is to be stoned to near death and left to die under the scorching heat of the desert wastelands.
Moments from death, she meets a demon who promises her immortality and vengeance, and with the powerful demon at her side, she participates in the destruction of her entire village. Centuries pass and Keira grows to regret the horror of her choices and seeks redemption. But she knows better than anyone that the last thing The King of Demons is going to let her do is atone for her sins.