Sadomasochism is an extreme tug-of-war, intertwined with love and hate, using "redemption" as a deception and "affection" as a sharp edge, hiding the grievances of two generations. It is ultimately an irreversible fate. It focuses on depicting the coldness of the human heart and the brokenness of emotions, and strengthens the resonance of "how true the love is, how deep the injury is." The background of the story is set in the middle and late period of the Republic of China (late 1930s to early 1940s). At that time, Shanghai was in a semi-colonial and semi-feudal structure. The concessions were intertwined with the Chinese world, and there were many foreign banks and commercial banks. Behind the prosperous business were factional disputes and competing interests. The current situation was turbulent. There were both the luxurious enjoyment of the rich and powerful, and the displacement of the people at the bottom. This troubled background further highlighted the sense of fate of family grievances and the sadness of sadomasochism.
