Marianne, a young teacher en route to her new job, finds herself stranded in a small Transylvanian village. She accepts the hospitality of Baroness Meinster, who lives in a grand but eerie chateau. Marianne soon discovers the Baroness keeps her son, Baron Meinster, chained in a secret room. The Baroness claims her son is mad, but Marianne is convinced of his innocence and helps him escape.

Unbeknownst to Marianne, the Baron is a vampire. His release unleashes a new reign of terror in the village. As mysterious deaths start to occur, Dr. Van Helsing arrives to investigate. He uncovers the truth about the Baron's vampiric nature and vows to stop him. Meanwhile, Marianne becomes entwined in the battle against the growing vampire menace.