Su Qingyi, a top student in the Department of Modern Forensic Medicine, once traveled through time and became a peasant girl in a remote mountain village in ancient times, and was forced to marry a low-status idiot son-in-law. Involved in a bizarre murder case at the beginning, she unexpectedly awakened the [Criminal Investigation Expert System], using modern criminal investigation knowledge and system assistance, and started the path of investigation in ancient times. In order to find out an old case involving her family, she worked step by step, from the small mountain village to the capital, and finally penetrated deep into the palace walls. While solving a series of unsolved palace cases involving "ghosts and gods" and "headless public cases", she gradually uncovered a shocking conspiracy to subvert the dynasty.
However, the biggest suspense comes from the person next to the pillow. Her seemingly foolish husband-in-law is actually a vengeful prince lurking in the dark and carrying a blood feud. When his revenge plan collides with the truth she pursues, an ultimate betrayal pushes her into the abyss. After her heart died, she was reborn from the ashes, growing from a dodder flower that relied on his protection to an independent woman who could compete with him in the chess game of power. The core highlight of the plot is that the heroine uses the criminal investigation system to conduct hard-core suspense reasoning, and the male protagonist goes from "not loving the country to loving the beauty" to "sacrifice the beauty for the country" to "chasing his wife in the crematorium" where he regrets it and fights to get her back.
