As the comforting warmth of sunlight begins to wane, creatures of seraphic beauty emerge as the undisputed rulers of the night, striking fear into every living being. Water freezes in the presence of these blood-sucking monsters, and their victims come to understand that this unnatural chill signals their inevitable end. Fortunately, the vampire population is declining due to the fearless bounty hunters who track down and kill these nearly immortal predators. One night, tragedy strikes the Elbourne family when their daughter, Charlotte, is kidnapped by Meier Link, a revered vampire lord guarded by an army of monsters. To rescue their beloved Charlotte, the family hires the Marcus Brothers, a group of vampire hunters known for their ruthlessness, and D, a sword-wielding dhampir—a half-vampire, half-human who possesses the strengths of both species without their weaknesses. The hunters rush to save Charlotte, but if her abductor decides to turn her into a vampire, they are ordered to kill her. Furthermore, their mission must be completed before Meier reaches the impregnable vampire castle of Carmilla, which would place Charlotte beyond humanity's reach forever.