Watch Crypt of the Vampire

Laura has fallen ill and her father becomes frantic. He sends for the doctor in hopes that he will be able to help the ailing girl. The nurse believes that Carmilla, an ancestor who died long ago, has possessed Laura. Soon after the woman commits to her belief, a carriage is involved in an accident outside of the castle. She is now trapped into staying there until a solution can be found. That is when the nurse becomes interested in finding out if Carmilla is truly responsible for Laura's strange illness so that the doctor can find a proper cure.