In this movie, a Hobbit killed his best friend in order to get the ring, and also, a son killed his father because of it. They want to get strong power, but desire makes them very awful. Finally, they received a just punishment. Our life is same to it. Some people think some people have desires, so he got the money, because some people have had the desire, so he is  rich now. However, the other people hold that  if his desire is endless , people will become slaves of money and desire. Similarly, by improper means ,to meet the desire, he must be punished! I also think so. A person can have desire, but endless desires can make him terrible even he will forget everything except himself. He can achieve his goal using all ways! So we should control our desires and make it our energy, not evil power.