An elderly heiress is killed by her husband who wants control of her fortunes. What ensues is an all-out murder spree as relatives and friends attempt to reduce the inheritance playing field, complicated by some teenagers who decide to camp out in a dilapidated building on the estate.

A young man, Peter, returns to Austria in search of his heritage. There he visits the castle of an ancestor, a sadistic Baron who was cursed to a violent death by a witch whom the Baron had burned at the stake. Peter reads aloud the incantation that causes Baron Blood to return and continue his murderous tortures.

A wealthy playboy gathers a group of bourgeois friends at his isolated beach house for a weekend of relaxation. When bodies start pilling up, they realize they’re trapped with a killer in their midst, sending them in a frenzy to figure out who amongst them is killing the others before they are killed next.

A couple is terrorized in their new house haunted by the vengeful ghost of the woman's former husband who possesses her young son.

A woman is strangled in the bath by a black-gloved killer who disposes of her body in a large trunk. The trunk is delivered to St. Hilda College, an exclusive finishing school. Betty-Anne, one of the female students, is strangled in the school cellar. The police, led by Inspector Durand, are called in to investigate. Suspects include La Floret, the voyeuristic gardener; Di Brazzi, the new swimming instructor; Mrs. Clay, the summer school French mistress; an old professor who collects birds; and a philandering young teacher called Richard. The murders continue but Jill, a keen amateur detective, helps the police identify the unlikely killer...

A young man returns from Rome to his sister's satanic New York apartment house.

After landing on a mysterious planet, a team of astronauts begin to turn on each other, swayed by the uncertain influence of the planet and its strange inhabitants.

Disowned in the past by his father, Kurt Menliff, a cruel and sadistic nobleman, returns to the family castle to reclaim his inheritance.

Upon his return from battle in the previous film, the great warrior Hercules learns that his lover, Daianara, has lost her senses. According to the oracle Medea, Dianara's only hope is the Stone of Forgetfulness which lies deep in the realm of Hades. Hercules, with two companions, Theseus and Telemachus, embarks on a dangerous quest for the stone, while he is unaware that Dianara's guardian, King Lico, is the one responsible for her condition and plots to have the girl for himself as his bride upon her revival.

A vengeful witch, Asa Vajda, and her fiendish servant, Igor Jauvitch, return from the grave and begin a bloody campaign to possess the body of the witch's beautiful look-alike descendant: Katia. Only a handsome doctor with the help of family members stand in her way.