In 2049, "midnight overlap" occurs in many cities: after midnight, a building or a street may briefly connect with spaces from different futures. The connection usually only lasts eleven minutes. Behind the door are bustling cities and ruins after the collapse of civilization. Ordinary people are still struggling for rent and livelihood, while the city defense bureau is guarding the entrances that may get out of control at any time.
Lin Che, a 19-year-old delivery boy, took an order to be delivered to a closed shopping mall in order to raise money for her mother's hospitalization expenses. When the rolling shutter door was raised, the lights inside were bright, but the date on the electronic screen was thirteen years later than today.
He managed to escape back to reality, but the face in the photo began to disappear, and the electronic identity could not find this person. The city is erasing evidence of his existence.
In order to regain his identity, Lin Che entered the dark side of the city. He discovered that a few people could use "city authority" to change local rules, but every time they called, they had to pay a price: body, memory, and even the qualification to be recognized by their loved ones. These costs are called "entropy debt."
And he could see the accounts being settled.
A mysterious black bill leads him to the urban experiment ten years ago, the past hidden by his parents, and multiple futures competing for reality.
In one of the futures, Lin Che, who has lived for two hundred years, has become a debt collector.
Lin Che in front of her had not yet collected her mother's hospitalization expenses.
A city's bill has arrived again.