The area where the man in the brown coat is located is the first anomaly in behavior trajectory that Qing Chen found.
Initially, the mouse plague would definitely not swagger onto the streets, nor appear in road surveillance.
So to analyze where the mouse plague first appeared, Qing Chen must infer its movement through analyzing human behavior.
He is not looking for mice in the surveillance, but rather those who suddenly disappeared in the city.
"Rewind No. 141 camera 36 hours, 32 minutes, and 12 seconds back. Mark the person on the screen. He and his wife were normally commuting 48 hours before, but suddenly neither of them have left home."
"Rewind No. 136 camera 47 hours, 10 minutes, and 31 seconds back. The woman in the video goes to work at a strip club in the Fourth District every night, but she hasn't left home in two days."
"Camera No. 151..."
"Camera No. 153..."
