Nearly a year after being shot and left for dead, Sergeant Rose Booker returns to active duty with the Worcester Police Department, hoping to put the past behind her - except she's not sure it's her past that's haunting her. When hard-drinking hell-raiser Julie d'Aubigny enters Rose's life, she promises to reveal the truth behind Rose's nightmares - or are they memories - of her death at the end of a hangman's noose. But first Rose must stop the mysterious madman waging a bloody campaign of vengeance that threatens to turn the city's streets red.

One year ago, Sergeant Rosemary Booker violently ended crime lord Erkan Waldemar’s reign of terror - and in doing so, unwittingly awakened in his wife, Isabel, the sleeping soul of the legendary Blood Countess Erzsébet Báthory. Hellbent on avenging her husband’s death, Báthory sets out to gather to her side history’s most notorious criminals and killers - an army of the damned to carry out her vendetta against Rosemary. The sins of Rosemary’s past are returning with a vengeance.

Since returning to the Limbolike afterlife known as Transition, Rosemary Booker and Erzsébet Báthory have been locked in a cold war for control of the mysterious netherworld, where history's most infamous women await their final reward or final punishment. As Rosemary and her friends plan a major assault on the legendary Blood Countess, Báthory sets the stage for her own endgame, determined to destroy Rosemary, once and for all. And if reality itself falls along with her? So be it!