Count Yorga, a cunning vampire, returns to modern-day Los Angeles after his supposed destruction in the previous film. He takes residence in an old mansion near an orphanage, quickly setting his sights on the unsuspecting community. Cynthia Nelson, a young woman attending a party at the orphanage, becomes the primary target of Yorga's deadly charm. As mysterious deaths and disappearances escalate, Dr. David Baldwin, along with his colleague Professor Rightstat, begins investigating the bizarre occurrences, suspecting supernatural involvement. The situation becomes dire as Yorga abducts Cynthia, planning to make her his eternal bride.

With tension mounting, David and a group of concerned citizens organize a daring rescue mission to infiltrate Yorga's mansion. Their goal is to save Cynthia and put an end to Yorga's reign of terror once and for all. Encountering unholy creatures and deadly traps within the vampire's lair, they must use all their wits and courage to survive. The conflict reaches a crescendo as they confront Count Yorga in a final showdown that will determine the fate of everyone involved.