A man hires a private investigator when his wife disappears on their honeymoon and his bank account gets drained.

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