The story happened in Beijing, one of the biggest cities in China, where most people fight for their positions in this society. Tan, a young man who had been born in a small village in the west China and had finished his college education several years ago, was living as a hired muscle. He searched for his chances on the internet, and was making a great profit. However, he occationally hit a local mob boss and was violently revenged. Normal people would take their chances to fight back, but our hero decided to take another way.