Forty-year-old Wenyao still lives in a rental room with his wife Xiaoyu, and keeps selling his book every day for rent and looks useless. On a whim, he plans to direct and shoot a video according to his book. He invites Meifeng to take a role in his video, but she edits and leaks auction fragment to the network. It makes Wenyao famous for the "hidden rule", and wins the attraction of investors. Wenyao hires amateur actors Yanzi and Mao, prepares for the opening camera. Xiaoyu learns about the "hidden rule" event and makes a scene. What can Wenyao do now?

Four friends come up with an unusual idea to make some money and have fun doing it. For a small fee, they will impersonate and act out any character role for their customers. In the course of executing this novel service, they encounter a whole spectrum of people in society, finding ways to genuinely help them boost their morale and overcome their fears, while gaining unusual and new insights into the human condition.

The story of two warring generals fighting for control of China at the end of the Qin Dynasty.

The film tells three stories about young people during different periods of Chinese history: the development of the Great Northern Wilderness, the Large-scale Development of Western Chinese, and the new era of socialism. Countless young people, filled with passion, integrated their personal ideals into the current of the times and composed a song of youth. Through the ordinary stories of young people, the film depicts the great development of the times and showcases the patriotic spirit of generations of young people.