In a sun-dappled garden in provincial Russia in 1905, some factory owners and their wives discuss the unrest among the workers. Rather than submit to a strike, they decide to close down the factory. When an owner is slain in a scuffle with a workman, the ensuing investigation uncovers the socialist fervor that is sweeping the countryside.

Humanity finds a mysterious object buried beneath the lunar surface and sets off to find its origins with the help of HAL 9000, the world's most advanced super computer.

An adaptation of William Gillette's play about the great Detective, Sherlock Holmes.