At the moment Jiang Guangming decided to go to Fanghai City for in-depth investigation, her husband mistakenly thought that they were going to separate, so he hurriedly stopped it.However, this dispute did not change Jiang Guangming's determination, and she packed her luggage firmly.On the train, Jiang Guangming and Shi Luo reviewed the details of the case together, trying to connect all the clues in their minds to find a breakthrough in the case.After arriving in Fanghai City, they visited Gu Jiming, but Gu Jiming seemed unusually calm about their arrival, claiming that the content on the postcard was just a dream of his.Although they failed to obtain valuable clues from Gu Jiming, when leaving, they accidentally rescued Su Zhenzhen in an out-of-control wheelchair.

After returning home, Su Zhenzhen did not mention the chance encounter with Jiang Guangming and Shi Luo, but she keenly noticed the two extra cups on the table.Faced with her inquiry, Gu Jiming said in an understatement that it was a friend from the literary club who was visiting.However, Jiang Guangming felt that Gu Jiming might have recognized Shi Luo, but deliberately pretended not to know him, which made her deeply puzzled.

They then continued to investigate the postcard and learned that it was sent through the mailbox.At the seaside hotel, they learned of the unusual circumstances when Tang Xun checked in, and learned that a cleaning employee named Jiang Na might be related to the case.However, Jiang Na has resigned, and the contact information she left behind has become empty.

Time goes back to June 21, 2018, the day Tang Xun checked into the seaside hotel.Jiang Na recognized him from reading his novels and noticed that the brown travel bag he carried probably contained a large amount of cash.On April 5, 2019, Gu Jiming secretly deleted all submission records in the magazine in an attempt to cover up the truth.When Su Zhenzhen woke up in the middle of the night and was not around, he tried to maintain a normal appearance, but secretly worried that his secret would be discovered.Finally, he invited Jiang Guangming and Shi Luo to the beach and tried to extract information, but Jiang Guangming's wit interrupted him.