When convenience store clerk Su Xia encounters a bizarre robbery on a rainy night, she discovers that she can see fragments of the future. The appearance of the mysterious man Lu Chuan pushes her fate into the abyss - the "door time" from three to four in the morning is tearing apart time and space, and reality and dreams begin to penetrate in both directions.
The luminous emblem that appeared on the arm, the three hours that disappeared from the surveillance camera, the memory worm running rampant in the morgue... The shadow of the "Door Opening" incident twenty years ago has once again enveloped the city. When Su Xia met her other self in the mirror world, she finally understood that the encrypted diary left by her parents contained the truth about a taboo experiment that could overturn the world.
A time-looping bronze pocket watch reverses itself in a rainstorm, and quantum collapse causes veins to grow on convenience store shelves. In the dream battlefield constructed by silver sand, the awakened time controller must face the bloody dawn: closing all doors means erasing the existence of Lu Chuan, and allowing the world to overlap will witness the irises of seven billion people being covered with silver parasites.
This is a huge gamble about memory and lies. When the black crystal altar appears in the real world, Su Xia's precognitive dream comes to an end with the ultimate choice - is the price of tearing apart the illusion of tenderness worth the heartbeat of the person she loves in exchange?
