Nangong Xiayan, an ordinary social worker who was overwhelmed by debt, accidentally discovered a mysterious website called "Memory Exchange". Here, memories can be bought and sold like commodities. In order to pay off the debt, he sold some of his insignificant memories with the mentality of giving it a try, but he did not expect to actually receive the money. Under the temptation of money, he bought a rich memory of "getting rich overnight" and wanted to experience the life of a rich person. However, this memory involved him in a real murder case. The luxurious night he experienced was the last experience of the victim before his death. In order to clear his suspicions, Nangong Xiayan had to dig deeper into the secrets behind the memory exchange, but found that the underwater world was far darker and more dangerous than he imagined. Behind every transaction, there was a price that could swallow everything.
