who moved my cheese? is a book about four characters. Sniff' and Scurry are mice, and Hem and Haw are people. They move around the maze to find cheese to eat. They find a cheese station so full of cheese that they think it is enough to last a lifetime. Suddenly, all the cheese disappears from that station, leaving the four stunned. The reality is, it had been gradually decreasing, but they had failed to notice it. How they react to this situation is the remaining part of the story.