The protagonist Dong Yuhao, known as Mr. Dong in the world, escaped from a heavy-duty prison after killing his enemy in the United States to avenge the murder of his mother, and became an internationally wanted criminal with huge assets but no way to use them. With the help of his brother Xiaofeng, he returned to China, hoping to retire to his countryside and live a peaceful life. However, an accidental expedition into the mountains led him to discover a mysterious ancient tomb that had been hidden for thousands of years. The peculiar Taoist culture and strange layout in the tomb not only revealed the dust-laden historical secrets, but also allowed him to meet Hu Jing, the Interpol responsible for investigating the matter. One is a gangster who is responsible for a murder, and the other is a righteous police officer. In the process of exploring the truth of the ancient tomb, a sadomasochistic relationship full of contradictions and struggles begins.