After the Fourth World War, conflict gave birth to a new technological singularity. The surviving humans rebuilt a highly advanced society amid the wasteland.
A promising top student turns himself in, claiming to have murdered six women. The last victim was his own mother.
But all the victims have been missing for a long time, and the police have no physical evidence, so they can only detain him for the time being.
Anxin, a polygraph expert known as the "Lie Detector," suffered temporary amnesia after an accident. During her recovery, someone asked her to go to Fubao District and assist with an investigation. She arrives just as a new local law is enacted, barring all women from freely entering or leaving the district. If she wants to leave Fubao District, she must help the local police uncover the truth behind the "serial disappearances of women" within a month.
As the investigation deepens, Anxin's memories gradually return. It seems her amnesia may be connected to the missing women...