"A murder case, two hostas, and the blood debt of the royal family fifteen years ago will finally be settled tonight."
On the night of the Ghost Festival, the second lady of the White House committed suicide by hanging from a beam. Yu Lingjun, the daughter of the Minister of Justice, was proficient in autopsy and concluded that the case was actually poisoned. The silk fragments held tightly in the deceased's hands and the jade hairpin hidden in his hair all point to the brothel "Yutangchun" in the south of the city. Bai Su, a medicine dealer, took the initiative to approach the case, but his identity became a mystery. She is familiar with poison, has secret connections with the world, and keeps secret about the past affairs of the White House. Yu Lingjun suspected her of ulterior motives, but had to rely on her clues. The two went from testing each other to relying on each other in life and death, and they were able to get through the confusion of the power struggle.
