Bloodrayne(2006)

It's 1723 and evil rules Eastern Europe. An evil Lord Kagan has so much power that no one stands boldly against him. No one would dare try. And as great as his power is, this Kagan has an opportunity to become utterly invincible. Three secret treasures, once united in his presence will give Kagan immortal powers of untold horror. But there is some hope. Throughout history there have always been those brave few who take up a cause for the good of mankind. The Brimstone Society is a small, but mighty group made up of just these kinds of men and women. They have banded together to care for each other and to make themselves the avengers of the weak. To smite evil where they can and to perhaps someday restore law and order to the rest of society. As these two forces converge, there are whispers across the land about a legend. A young and beautiful woman might harbor the secrets to defeat the mighty Kagan. Will Brimstone find her before Kagan does? If they find her, will she help them or go her own way? Even if she does help, will it be enough to defeat the evil armies of Kagan? And what is her dark secret that would make even Kagan fear her?