Prudence Hardcastle is on the pill. So is her sister-in-law, but someone has been swapping aspirin for their pills. Is it the teenage niece, the maid, the chauffeur, a lover, Prudence's husband Gerald, or all of the above?

1967 film by Sergio Grieco

After a peaceful sailboat ride, four young people, including rich kid Bill, Joe, Fred and Jane, knock on the door of a secluded villa after their dune buggy runs out of gas. Earlier in the day, Bill had given the lovely Jane a pearl necklace with a supposedly paranormal history, and this later opens up a can of worms. They are invited to spend the night at the mansion, owned by Lord Alexander and Lady Alexander, who happen to be hosting a strange ceremony that night attended by a group of eccentrics in black robes. During the evening, Jane exits her sleep chamber, seemingly in some kind of trance, and is lured to a sacrificial alter where the robed houseguests are hovering over her. As a knife is about to be plunged into the young lady, her three friends come to the rescue, but they are also witness to a chaotic mass murder catastrophe in which they flee with feelings of guilt and uncertainty.

A young woman joins an exclusive women's health clinic only to discover it's run by feminist cannibals.

Johan Wallenberger, a rich financier, is killed in the House of Horrors at an amusement park in Madrid. His insurance company assign Chris Buyer, one of their best agents, to investigate because a few days prior to his death, the businessman took out a million dollar life insurance policy. Chris ingratiates himself with Catherine, Wallenberger's beautiful daughter, and it emerges that she is being plagued by a blackmailer. Chris is invited to the Wallenbergers' country house and is soon the centre of attention for several attractive women. Meanwhile, the plot thickens...

An ambitious mobster plans an elaborate diamond heist while seducing the daughter-in-law of a ruthless mob patriarch as a determined police commissioner closes in on all of them.

Carla Zachanassian had a child by Serge Miller as a teenager. When Serge refused to marry her, she was driven out of town. By her own wit and cunning, she has returned as a multi-millionaire for a visit. The town lays out the red carpet expecting big things from Carla, only to learn that her sole purpose is to see Serge Miller killed...

In order to boost circulation of his newspaper, Lord Rawnsley announces an air race and offers £10,000 to the first person who can fly across the English Channel. But one of the participants, Percy, plots to sabotage his competitor's planes. Will Percy triumph?