After three years of marriage, Su Wanqing always thought that her husband Lu Lin was just an ordinary man guarding a community emergency store. Three minutes after the divorce application was submitted, Lu Lin received a strange message: [In the west tower of Yunhui Center, the elevator went out of control, and nineteen people were expected to die. The first deceased: Su Wanqing. Forty-seven minutes later, the entire building's intelligent system was taken over, and one hundred and eighty-six people were trapped high in the sky. Everyone was waiting for rescue, but Lu Lin used a screwdriver to take over the emergency authority of the entire building. Only then did Su Wanqing know that the urban crisis response expert "Zero" who suddenly quit the industry three years ago was her husband. Yet this is only the first accident on the list. Power outages in hospitals, backflow in subways, poisonous fog at ports, pollution of the city's water network... The number of casualties was written in advance for every disaster, and there was only one sentence on the last page of the list: [Seventh accident, executor: Lu Lin.
