In Song Qinghe's world, the ethics button must be pushed to the top, evidence must be arranged in a straight line, and even emotions must be hidden neatly;
In Lin Shuyue's life, her collar was always two buttons loose, and she relied on intuition when investigating cases. Only the old injury from three years ago could not be touched or forgotten.
A copycat murder case brought two extremely contrasting people together: she brushed off the wall on the back of her neck, and she persuaded her to loosen her tight collar; she used her expertise to cut apart the evidence, and she used her obsession to uncover the real culprit.
The pen's dizzy handwriting, the yellowed letters in the secret compartment, and the sinister gaze hidden in the eyes. When old traces are superimposed on new cases, they realize that the truth is hidden in the depths of time, and each other is the other's only salvation.
"You abide by your rules, I will protect my past, and I will accompany you to the end of the investigation."
Purpose: commemoration