One night, the world's internet suddenly went down. Livestreamer Annie also announces that she will be leaving the livestream platform tonight, disappearing from Xiao Deng's world. Puzzled, Xiao Deng plucked up the courage to step into the dark city alone, wanting to find a signal to save Annie's existence. On this night, a group of people who are sleepless due to the internet are looking for ways to reconnect with the world......