After Shen Qingyan, the top criminal police officer in the modern era, died on the job, he traveled through time and became a good-for-nothing female head catcher of the ancient county government. Faced with the secret room mystery and the ridicule of her colleagues, she used modern criminal investigation methods to reduce the dimensionality of the case: fingerprint analysis, toxicology testing, and criminal profiling. Collect street children, old widowers, and brothel courtesans to form a professional team to solve unresolved cases and expose conspiracies in the whirlpool of prisons in the empress's era. She also discovered that the time-travel was no accident... When the truth touches the imperial power, she will use her expertise to rewrite the rules of this era.
Purpose: Use modern criminal investigation knowledge to solve difficult ancient cases