Carmilla is narrated by a young woman preyed upon by a female vampire named Carmilla, later revealed to be Mircalla, Countess Karnstein (Carmilla is an anagram of Mircalla). Le Fanu presents the story as part of the casebook of Dr. Hesselius, whose departures from medical orthodoxy rank him as the first occult doctor in literature. The story is often anthologized and has been adapted many times in film and other media. It is a one of the earliest works of vampire fiction, predating Bram Stoker's Dracula (1897) by 26 years.
Joseph Thomas Sheridan Le Fanu (1814-1873) was an Irish writer of Gothic tales and mystery novels. He was a leading ghost-story writer of the nineteenth century and was central to the development of the genre in the Victorian era. M. R. James described Le Fanu as "absolutely in the first rank as a writer of ghost stories".