When Lin Mo's roommate, Zhao Yang, falls into a coma after encountering a mysterious book with a red cover, their ordinary college life comes to an abrupt end.
To save his friend, Lin Mo ventures into the campus's little-known "Midnight Library," a mysterious place that opens only at midnight and has thirteen eerie borrowing rules.
"Do not look back down the hallway."
"If you hear someone call your name, do not answer."
"If you see a girl wearing red glasses, close your eyes immediately and leave the area."
A terrifying price lies behind every rule, and each time he borrows a book, he is locked in a battle against an unknown force.
As Lin Mo gradually uncovers the library's secrets, he realizes it is not just a treasure trove of knowledge, but also a vast trap that feeds on human curiosity. And is the mysterious librarian a protector or a prison warden?
In this maze of knowledge and sacrifice, Lin Mo must find a way to break the rules, not only to wake his friend, but also to uncover the truth and free all the souls bound by them.
The Midnight Library never gives anything for free, and it evolves. When the bell tolls, will you dare to open that door?
