The Vampire Lovers (1970)

Set in the eerie landscape of Styria, the Karnstein family continues their reign of terror even after death, preying on the innocent in search of blood. Baron Hartog, whose loved ones have fallen victim to their vampiric curse, takes it upon himself to end their menace by staking the undead. However, he fails to find the grave of the stunning Mircalla Karnstein. After a period of unsettling calm, Mircalla rises again, seeking revenge for her family's demise and indulging her insatiable thirst for blood, plunging the region back into chaos.