In 2077, the development of science and technology began to enter a new era, and the medical treatment of human diseases made huge gains. The drug research institute of Huangjin Pharmaceutical made breakthrough achievements. Scientists headed by Shen Buhai developed a drug that can cure cancer. Under pressure from the company's top management, they had to illegally conduct human experiments in order to develop anti-cancer drugs as quickly as possible. The subjects of human experiments were placed in the slums of Quyang City, black households who were unable to choose their own jobs.
On the streets with poor environment, patients in ragged clothes can be seen everywhere lying on the filthy ground. A terminally ill person is almost every step away.
Zhao Cuo, one of the gangsters, suffers from cancer and has a son, Zhao Xiao, who has terminal cancer. The father and son huddled in a dark alley, quietly waiting for the arrival of death. At this time Shen Buhe discovered them and extended a "helping hand"
