In the last years of Guangxu, Western thoughts poured in like a tide, and the ancient empire was swaying in the wind and rain. Shen Moyan, a strange official who came back from studying "deductive method" in the UK, talks a lot about "basic deductive method", but because his thinking is too Westernized, he was sent to Yuhang County, a misty place in the south of the Yangtze River. Here, he met Su Qingdai, a talented widower who could "talk to the dead."
One is a logical madman who uses science to solve crimes, but often makes jokes because he is ignorant of the world; the other is a calm master who adheres to ancient skills but can see the truth in the smallest details. The encounter between the two is a collision of ice and fire, and a wonderful fusion of science and tradition.
From "River God's Claim for Life" to "Ancient Tomb Corpse Talk", the truth of a series of strange cases was revealed through their joint efforts. In the process of solving the case, Shen Moyan and Su Qingdai gradually became each other's most solid support from enemies who disliked each other. At the same time, a huge organization "Netherworld Pavilion" lurking in the shadow of the prosperous age gradually surfaced. Every case they investigated actually pointed to a shocking conspiracy to overthrow the dynasty...