Female Vampire AKA La Comtesse Noire (1973)

Driven by uncontrollable, carnivorous lust and an insatiable thirst for human vital fluids, the cursed Bohemian aristocrat, Countess Irina von Karlstein, is doomed to walk forever on the Earth as a vampire. Armed with irresistible allure, Irina sets foot on Madeira Island, Portugal, on the foggy February of 1974, and while being hellishly compelled by dark forces to commit heinous crimes, she slaughters her unsuspecting lovers, sucking their warm, bright-red blood and absorbing the victims' sexual juices. But, before long, the dead bodies start piling up, catching the attention of the inquisitive freelance journalist, Anna, who wants to shed light on the mystery. However, as evil knows no boundaries, Anna's dreams turn into nightmares, inviting the seductive blood-sucking creature to satisfy her unbridled sexual passion. Has anyone ever escaped from the clutches of Irina, the Black Countess?