In the flourishing Tang Dynasty, Li Jinglan, the gifted daughter of a prefect, possesses an extraordinary talent for forensic investigation and solving mysteries through autopsy. Together with the enigmatic "Ghost Detective" Jueming and the highly skilled constable Su Yu'an, she embarks on a series of perilous investigations, unraveling one bizarre case after another: the deadly identity swap of twin sisters, a scholar's wrongful conviction buried for seventeen years, and a string of ritualistic murders committed during an elegant literary gathering. Amidst bloodshed and deception, Li Jinglan and Jueming gradually develop deep feelings for one another, supporting each other while steadfastly upholding justice and breaking free from the shackles of fate. Beneath the dazzling lights of the prosperous empire, they use wisdom and courage to cleanse corruption and darkness, forging a legendary tale of righteousness, truth, and integrity.