Kyuuketsu Shoujo Carmilla

Synopsis

A loose adaptation of Sheridan Le Fanu's Gothic story Carmilla. During summer vacation, Chizuko Kitagawa stayed in the countryside with her big brother, their parents, and their old family maid. One night Chizuko and her brother saved a foreign girl named Carmilla from a car accident. Somehow, Carmilla was the spitting image of a woman who appeared in the brother's dreams ten years ago. While the whole family wanted Carmilla to stay with them until she recovered from her accident, the old maid adamantly insisted that Carmilla must immediately leave, or else misfortune will strike! (Source: MyAnimeList)