An architect and his wife are staying in an empty castle in California. They are joined by an unhappily married lawyer and his wife. Things start getting strange when they spot a half man/half beast prowling around the house and keep seeing a headless woman wandering the grounds.

In order to qualify to inherit the family fortune, the four heirs must spend the night in the family estate. However, during the night someone starts killing them off.

A space ship crash lands on the third planet of a distant solar system, killing all hands except for a young boy named Tang. The rescue ship arrives some 20 years later. One of the crew, a girl named Linda meets Tang and falls in love with him. They are attacked by the native humanoids of the planet and many of them are killed off. Also, the crew encounters many strange beasts on this strange, but somewhat familiar world.

A singing rodeo rider takes a job at an all-female dude ranch, where he gets involved with a physical trainer and a treasure hunt for gold in a ghost town, leading to a showdown with kidnappers.