In the late 40s, a powerful vampire fathered twins with his young maid who tragically died giving birth. The children were separated. Decades later, the daughter reunites with her father becoming his loyal and deadly sidekick while her twin brother grow up homeless and haunted by justice. Now in the present day, the vampire haunts a young woman intent on impregnating her to achieve eternal life. But the boy twin stands in his way determine to protect her at all costs.