Count Yorga, Vampire

Weeks after her mother dies, Donna and her boyfriend, Michael, invite Bulgarian emigre Count Yorga to conduct what turns out to be a failed seance. Donna's friends Erica and Paul give the count a ride back to his estate and are attacked while leaving. The next day, Erica visits blood specialist Dr. Jim Hayes, who finds bite marks on her neck and concludes that Yorga is a vampire and must be stopped.