On a rainy night, takeaway rider Lin Ye received an unusual order that could not be canceled: delivering a box of antipyretics to the No. 14 Building that no longer existed. Access control begins to erase the identities of violators, rewriting maps, files and the memories of loved ones. After escaping from the community, he thought the matter was over, but there was an additional "Drill Delivery" entry on his phone that could not be deleted. Patients who only have medical records but no bodies, drivers who disappear on the last subway... Every urban drill turns ordinary occupations into rules of life and death. What Lin Ye has to do is not to become a hero, but to find a legal exit before the countdown ends without treating anyone as the answer.
