Su Yan, a modern poison medicine doctor, accidentally transformed into a torture chamber clerk in the Yin Dynasty. With his superb knowledge of toxicology and anatomy skills, he stirred up troubles in the ancient officialdom. The powerful Prince Jing, Xiao Jue, deliberately approached her in the name of "investigating the case" in order to get rid of the curse on his body. However, he was defeated by her modern thinking and vicious tongue. When the masks of the two-way disguise were lifted layer by layer, the two discovered that each other was inextricably linked to the murder of the former poison doctor family. From testing each other to breaking the situation side by side, this game mixed with poisonous weeds and sweet pets finally turned the cold-faced prince into a "wife-chasing scumbag", while the poisonous doctor counterattacked and became a legend.
