Carmilla.

In 19th-century Styria, isolated teen Lara's quiet life is upended by the arrival of mysterious, beautiful Carmilla, a female vampire with whom she develops an intense, homoerotic bond. As Lara's life slowly drains, themes of forbidden desire, identity, and the supernatural are explored, culminating in Lara's discovery of Carmilla's vampiric nature and a confrontation with her ancient lineage.