Rayne is a dhampir, born from the unnatural union of vampire and human. Her mixed heritage grants her vampiric powers and superior resistance to sunlight and water, but curses her with the bloodthirst of a vampire. She has defeated countless monsters both demonic and human, but now faces her most personal battle yet. Rayne must hunt down her very own siblings, who have banded together and pledged to carry on their father's legacy of creating a new era of vampire supremacy in which humans are mere cattle.