Synopsis：A series of accidental deaths have occurred in "Wuchang Town" that has been peaceful for many years. During the investigation, the captain of the detective team, Chen Mo, rescues the drowning girl Bai Shuang. With the cooperation of Bai Shuang, they rush to the scene of death time and again, but narrowly misses the Grim Reaper each time. Are these accidental deaths under everyone’s noses a natural disaster or a man-made disaster?