Heiress Joanna Stayton hires carpenter Dean Proffitt to build a closet on her yacht—and refuses to pay him for the project when it's done. But after Joanna accidentally falls overboard and loses her memory, Dean sees an opportunity to get even.

Astronaut Taylor crash lands on a distant planet ruled by apes who use a primitive race of humans for experimentation and sport. Soon Taylor finds himself among the hunted, his life in the hands of a benevolent chimpanzee scientist.

Hard times come for the Carraclough family and they are forced to sell their dog, Lassie, to the rich Duke of Rudling. Lassie, however, is unwilling to remain apart from young Carraclough son Joe and sets out on a long and dangerous journey to rejoin him.

A UFO is stranded on earth and impounded by the US government. Its pilot, a cat with a collar that gives it special powers, including the ability to communicate with humans, has eluded the authorities and seeks the help of a scientist in order to reclaim and repair his ship and get back home.

A team consisting of a physicist, his wife, a young female psychic, and the only survivor of the previous visit are sent to the notorious Hell House to prove or disprove survival after death. Previous visitors have either been killed or gone mad, and it is up to the team to survive a full week in isolation, and solve the mystery of the Hell House.

An opulent beach resort provides a scenic background to this amusing whodunit as Poirot attempts to uncover the nefarious evildoer behind the strangling of a notorious stage star.