The war between angels and demons has been waged since the beginning of time and the line between good and evil has always been clear. But now Irin is no longer sure. Cast out from Heaven, banished to Earth to rid the world of demons, she finds that line blurred. Denied the chance to return home, she is on a path that threatens to turn her into the very thing that she hunts. Betrayed by those closest to her, she finds herself broken and chained in the depths of hell, having to trust those she has been taught to hate. Those she spent her life killing. What happens when the lines between good and evil become crossed? Who will save her when she can't save herself?