After returning from Beijing for seven years, she was involved in a series of bizarre murder cases. The sudden death of a noble concubine, the emperor's nightmare, and the reopening of old cases. The seemingly unrelated truths ultimately point to the destruction of the Gu family and the secrets of the royal family. Along the way, she investigates dead people, sees people's hearts, and gets closer step by step to the person who is always hiding in the dark - one wants to save the world, but the other wants to destroy it with his own hands.
