Film ideas.

Several decades into the future, and mankind has all but destroyed itself fighting for the last few resources left on the planet. The remains of humankind are forced to survive in the crudest and most primitive of ways, salvaging what little they can from their old lives. 

The main character is a simple person trying to survive as long as possible. As he is preparing his first meal in quite a while, he notices some people approaching. He prepares himself for the worst, and sets various traps, and surprises to deter those who would kill him.

After dispatching of his foes, he searches their bodies. He finds a wanted poster with a picture of his face and his name. The poster reveals that the main character is wanted for multiple accounts of murder and cannibilism.