I was asked last night what my facination with zombie movies was. Why do I like zombie movies? Well, simple. My answer was thus: It is a world with no illusions. It is a kill or be killed environment, without the complicatedness of everyday life.
You see, in a zombie movie, you have two groups: The infected and the uninfected. The ultimate goal of the infected group is to wreek havoc on the world. They devour and destroy everything in their path. They live or die according to their new savage nature.
Now, the second group, the uninfected group has a totally different objective. They want to remain alive, and all they are is based on their determination to remain such. It becomes a Darwinian existence where the strong survive and the weak die. Their complex lives are removed and they are thrust into a simplistic form of existence. It's the obvious and ultimate return to hunter/gatherer status. If they are hungry, they find food. If they are thirsty, they find water. If they are caught by a horde of zombies, you kill them before they kill you.
You see, what we don't find in a world where zombies roam the planet are the complicated social environments that we have in the real world. In the real world, we have a work environment, a communial environment and a familial environment. There are more, but these three tend to outway the others. We have behaviors in these environments that dicate our existence in them. At times, these behaviors are contrary to our true selves. So, we either play nice or suffer consequences. Our survival is based on our behavior in certain circles and the consquences of them if we veer off the normal set of behaviors. In other words, if we don't play nice at work, we are fired, we loss income, we can't pay our bills, we loss the house and then we live on the streets where we beg for food and money. In the familial environment it's a tad simplier. You yell at your sister, your mother defends her, your voice goes up a decible while you explain yourself to your mother and she kills you. Simple, the end.
In the zombie world, people don't have set norms to live by. Our contact with the human race isn't based on niceties or how well we can multi-task. Human survival is the primary goal, starting with your own, and the only reason to band with other uninfected is for the purpose of the primary goal. You don't have to keep your job (your boss is a zombie), you don't have to pay your bills (the collectors have been eaten), your family is gone (they have somehow become Mexican citizens all of a sudden) and everyone does their part to survive.
One purpose: Survival. One goal: To stay alive.