In a car accident, the famous writer Xiao Yiqing disappeared unexpectedly. It was later found that she was placed in a mountain hut. The male owner of the house was very hospitable, but he had an indescribable ambiguous attitude towards Xiao Yiqing, and seemed to be hiding many secrets. What is in the third most mysterious room in the house, and who is the girl who unexpectedly appears, reveals a dusty past ten years ago. Finally, when the police came here again, they discovered that the house had actually burned down 10 years ago. So who did the writer see, and what kind of ulterior relationship does it have with the writer?