Xiao Xiao woke up and his watch showed -12 days. The woman next door said she dreamed of him. There are game houses, memory shops, and pawn shops on the long street - if you win, you will get days, if you lose, they will become pictures on the wall. But the most terrifying thing is: every time you win, there will be a gray "me" at the door of the hotel. Those "selves" open their eyes and say: The ninth door is in your heart. But he clearly remembered that he had been dead for three years. What is the woman who calls herself my wife hiding?