In the prosperous Tang Dynasty, Chang'an had murderous intentions hidden beneath its prosperity.
Female forensic doctor Ran Yan was forced to join forces with Xiao Song, the young minister of Dali Temple, because of a bizarre murder of an aristocratic woman. She is proficient in the art of autopsy and can read the truth from the dead; he is good at peeling off cocoons and pursuing justice in the whirlpool of intrigue. The two have their own concerns - she wants to find out the truth about her mother's death, and he wants to clear his father's injustice.
However, as the investigation deepened, the case actually pointed to a mysterious organization "Red Lotus Society", and the deceased were all secretly related to the imperial court. What is even more shocking is that all the evidence vaguely leads the blame to the Xiao family...
When trust encounters betrayal, when feelings collide with the truth, can she and him discern the true heart amidst conspiracy and calculation?
