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…

Madrid: Johan Wallenberger, a rich financier, is killed in the House of Horrors at an amusement park. His insurance company assign Chris Buyer, one of their best agents, to investigate…

Prudence is on the pill; so is her sister-in-law, but someone has been swapping aspirin for their pills. Is it the teen-age niece, the maid, the chauffeur, a lover, Prudence’s…