Count Yorga, Vampire (1970) on Netflix

In Los Angeles, a group of friends of Donna reunites for a séance conducted by Count Yorga to make contact with Donna's mother, who has recently died and was having a love affair with the Yorga. Paul and Erica Landers drive Count Yorga home in an isolated manor and in the return, their Kombi gets mysteriously stuck in the mud. On the next day, they have no recollections from the previous night and Erica has lost blood. Dr. James 'Jim' Hayes, who is a family friend, sees Erica drinking the blood of a cat and he believes that Count Yorga is a vampire. Paul decides to go to Yorga's house and disappears and Donna's mate Michael 'Mike' Thompson, Jim and Donna decide to pay a visit to Count Yorga late night. When Donna also disappears, Jim and Mike plan to hunt Yorga down to save Donna. Will they succeed in their intent?