Gu Chen has a habit: record three things that happened every day.
Because he always believed that when a person truly disappears, it's not when his heart stops, but when no one in the world remembers him anymore.
On the eve of the demolition of the old Xicheng Archives, an administrator named Chen Jianguo handed him a brass key engraved with "17".
The next day, everyone said - there is no such person.
The figure in the surveillance camera disappeared, and the name in the file disappeared. Only Gu Chen still remembered it.
In order to prove that Chen Jianguo once existed, Gu Chen opened a file that should not exist.
The first page of the file reads:
Twenty-five years ago, Gu Chen died.
And that key is leading him to a truth forgotten by the whole world.
