Similar to the popular video game, the film is based on a sexy, supernatural huntress named BloodRayne (Loken), who is an unholy breed of human and vampire. She is an explosive force with gymnastic dexterity and has an intense lust for blood and action. Trained by a secret agency called the Brimstone Society which hunts down and eliminates supernatural threats around the globe, BloodRayne is confronted by the deadliest of all creatures, the powerful and evil Kagan, King of the Vampires (Kingsley). Davis portrays Sebastian and Madsen is Vladimir, two of the greatest vampire hunters. Rodriguez plays Katarin, who runs the local Brimstone Society chapter.