In the last days of the first half of the twenty-first century, the Chinese entrepreneur Táng Wong is assassinated during a mass shooting in the city of Tulsa, while on tour of his aerospace industries. No one notices, except his employees and his daughter. Why did he go there? Chinese are not welcome here! There are a few opinions. But no action. Just another mass murder in America. His daughter Táng Yáng receives the news with aplomb. She does not cry. She does not ask for justice. She has been trained by her father to tackle troubles and sad news rationally. Therefore, she plans revenge. She finds who the master mind of the mass murder is. She seeks a path to vengeance. She has the resources. She has the determination. She has the know-how. She is the most dangerous woman in the world.