The Shiver of the Vampires (1971)

A newlywed couple seeks a romantic getaway in a centuries-old castle, unaware of the sinister presence lurking within its walls. As night falls, they find themselves entangled in a web of dark desires crafted by the castle's resident vampires, who have their sights set on the unsuspecting pair. The couple's blissful evening quickly turns into a nightmarish encounter, as they navigate the eerie surroundings and confront the undead threats that lurk in the shadows. Tension escalates as survival becomes their only goal against the seductive yet perilous forces of the night.