The Seduction of Amy (1975)

In a 16th-century European town, the ruling family has been given a prophecy that, should there ever be twin boys born, the younger will murder the older; so is dismayed when twins are born to the popular baron. The older grows to be a selfish, slovenly man, who inherits the castle at his father's death and becomes ruler over the formerly happy villagers. He enjoys his power until he learns his younger brother is returning from abroad and, afraid of the prophecy, he determines to murder his sibling, hide his body in the "black room" - an old torture chamber sealed away behind the fireplace - and then impersonate him, right down to his withered arm. In this way he hopes to not only avoid the prophecy, but also escape consequences of his other criminal deeds and obtain marriage to a local girl of the nobility...

The terrible and trecherous Pendragon plans to gain the throne of Cornwall by getting the king to abdicate and to marry his lovely daughter. To help him he has his dreadful witches in his castle and his almost unstoppable sorcery. A giant under his control abducts the princess, but on the way home with her the giant meets farming lad Jack who slays him. This is only the beginning.

While dabbling in Satanism, Count Karstein resurrects Mircalla Karnstein who initiates him into vampirism. As a rash of deaths afflicts the village, Gustav the head of Puritan group leads his men to seek out and destroy the pestilence. One of his twin nieces has become inflicted with the witchcraft but Gustav's zeal and venom has trapped the innocent Maria, threatening her with a tortuous execution, whilst Frieda remains free to continue her orgy of evil.

A bachelor party becomes a savage fight for survival when the groomsmen unwittingly unleash a fabled predator upon the festivities.

Ebony Jackson, a struggling single mother fighting her personal demons, moves her family into a new home for a fresh start. But when strange occurrences inside the home raise the suspicions of Child Protective Services and threaten to tear the family apart, Ebony soon finds herself locked in a battle for her life and the souls of her children.

A countess from Transylvania seeks a psychiatrist’s help to cure her vampiric cravings.

Sinister things begin happening to kidnappers who are holding a young boy for ransom in a remote cabin.

In medieval England, Anne and her domineering mother-in-law Morwen struggle to survive on the outskirts of society. But when a man from Anne's past returns from war, a curse begins to take shape through a mysterious knight and threatens to destroy them all.

A toxic spill revives a beautiful, dead heiress who, with the help of her childhood friend, must quench her insatiable thirst for blood.

Still reeling from the tragic death of their mother, a teenage girl and her younger sister find themselves plagued by a sadistic presence in their house and struggle to get their grieving father to pay attention before it’s too late.