Wei Heng, the daughter of the Minister of Household Affairs, is the descendant of the first wealthy family in the capital. She is born with an extremely sensitive sense of smell and can detect subtle things that ordinary people cannot detect. With a marriage proposal, she became the royal concubine of Xie Huaijin, the rumored violent and gloomy prince of Zhenbei. On the wedding night, a murder occurred in the house. Wei Heng was ordered to do so when he was in danger. When everyone was helpless, he dissected the corpse and searched for traces. He revealed a secret and shocked everyone. At this point, she began her career of using a lancet to cut through the fog in the capital. From the secrecy of the aristocratic family to the strife in the court, to the shocking conspiracy to subvert the imperial power, she and her husband, the prince, who also kept secrets, established trust between life and death, and protected each other in the mountains of corpses and seas of blood. In the end, as a woman, she took charge of the world's punishments, spoke for the dead, and established fate for the living.
