Ella, a wealthy heiress, flees a forced arranged marriage and crashes off a cliff. Her blood awakens Karen, the thousand-year-old original vampire sealed long ago. The two form an ancient blood contract and become spouses, enraging the Rossi mafia and Ella’s Windsor clan. The families ally with rebel vampires and kidnap Ella to blackmail Karen. Overpowering all foes, Karen uncovers the truth that the Windsors sealed him a millennium later. Remaining mob forces incite werewolves to wage war. Ella’s pure primordial blood empowers Karen to break silver’s curse and achieve ultimate evolution. After the war, vampires and werewolves sign a peace treaty. Ella chooses to turn into a vampire. They hold a sacred wedding, securing lasting peace among humans, vampires and werewolves, as they await their hybrid child.
