Modern forensic doctor Shen Zhiwei traveled through time and became Princess Chongxi, the stand-in for Prince Jing's palace. Her original body was abandoned in a side hospital to die. With her professional forensic skills and calm mind, she figured out that Prince Jing Xiao was not seriously ill but had been chronically poisoned, and she exposed the conspiracy when she was almost silenced. Faced with the oppression of his concubine Liu Ruyan, the strict hierarchy of the palace, and the hidden murderous intentions, Shen Zhiwei used his ability to "examine the corpse and identify the poison" to peel off the cocoon from the case of the female corpse beside the well, and gradually uncovered the poisoning network of the mastermind behind the scenes. He circled on the edge of life and death and embarked on a counterattack path from being the substitute for the abandoned concubine to taking charge of life and death, and uncovering many fogs.
