When security guard Chen Jin was scolded by a customer, "Get out", he silently pressed the alarm. The entire city was instantly powered off, the subway was shut down, communications were paralyzed, and millions of citizens were plunged into panic. No one knew that this was actually the awakening of the sleeping 'city will' in his body. Electrical engineer Lin Zhuo tracked the abnormal signal and discovered that the alarm was related to the death of his father; Lao Zhao's lies, Zhou Yan's iron fist, Ah Ya's whispers and Shopkeeper Wang's secrets were intertwined layer by layer into a neural network covering the entire city. When the alarm sounds again, Chen Jin must choose: to become the city's savior, or to devour its tyrant.