The last century thirty's, just graduated from the Academy of young girl Wu Man, with the eradication of evil, the pursuit of justice ideal, came to the river town police station, as a police cadet. Someone said of peaceful times., gunned down in the street vendors of spot, took a pretty girl. Wu Man soon found out, it is the police moustache and behind don't director. But this is a simple case, but was delayed prevarication, Wu man by intimidation and bribery, let the exit. Wu Man vowed to find out the truth, she broke into the house when don't, don't, act recklessly and care for nobody to say that they must play with legal, justice, with conscience, Wu Man unbearable, took off his thought represents the law, order uniforms, executed murderer. The social order disappointed Wu Man quit the police force, as a salesman, and then opened a research firm, and later to the police station when the inspector, but because of the pursuit of pure equity, and the forces of evil opponent. Wu Man against his goodness, wisdom and courage, cracked a mystery of mysteries, conquer another dangerous opponent.