wiki about the book:
Two migrant field workers in California on their plantation during the Great Depression—George Milton, an intelligent but uneducated man, and Lennie Small, a bulky, strong man but mentally disabled—are in Soledad on their way to another part of California. They hope to one day attain the dream of settling down on their own piece of land. Lennie's part of the dream is merely to tend and pet rabbits on the farm, as he loves touching soft animals, although he always accidentally kills them.