When Kate Davis is kidnapped by members of a cult, she is shocked to discover that they believe her to be a descendant of the notorious Elizabeth Bathory, known as the Blood Queen. The cult, which harvests humans for their blood, tries to enlist Kate to join, but she refuses. After being drugged against the advice of Fraser, the cult's doctor, Kate returns home, only to find her husband taken captive. Dr. Fraser offers to help, but can he be trusted?