Transactions in the name of survival are quietly taking place in the corners of the city: emotions, power, and dignity are all chips, and human nature is repeatedly pulled between price and conscience. Lin Xiaoyu signed a gray agreement and became an observer and gamer between Li Wei, Zhou Shufen, and Qin Feng, but unexpectedly uncovered the emotional entanglements and secret transactions of his father's generation spanning twenty years - his father's long-term remittance to Zhou Shufen, the love and hatred between two generations of the Qin family, and the property rights conspiracy hidden in the old building of the Republic of China. Behind the layers of fog, there is betrayed love and forced sacrifice.
Su Xiao encounters a dangerous invitation from a gallery owner and the kind help of a mysterious investor, but discovers that there is no free redemption in the world; Lin Xiaoyu struggles with the identity of a triple agent, not only to protect his mother, but also to find out the truth about his father's escape, and to keep himself from being swallowed up by the deal. Four women, four account books with hidden desires, they are both the commodities being priced and the merchants controlling the transactions, the prey and the hunters.
In this interlocking desire transaction chain, everyone is calculating the cost and weighing the pros and cons, but they are also looking for unerased conscience and the possibility of escape in the cold transaction. When all the secrets come to light, and when the price and the sincerity confront each other, they will finally write down their own choices on the last blank page of the account book - whether to continue sinking, or to stop abruptly and regain the pricing power of life.