Introduction
Shen Jin, the leader of the cold case team, personally ended the peaceful life of his first love fifteen years ago, but he did not know that the other person had transformed into the serial killer "Thrush". When an old case resurfaces, forensic psychological portraitist Ji Yuan discovers that every corpse contains a secret code that only they understand. Former consultant Zhou Yanqiu secretly planned, the funeral home clerk Lin Wantang unconsciously spelled out the truth code, and the missing painter Lu Xiao was using killing as his brush to redraw their torn past. The closer Shen Jin solves the case, the more it feels like he is digging his own grave; the closer Ji Yuan gets to the truth, the less he can believe whether the person he has loved has really loved him.
