Su Tang, an emergency doctor and a life-keeper, Shimmer;
Forensic doctor Lu Yan protects the truth about the deceased.
As a result of the serial murders, the boundary between life and death meets.
From tit-for-tat to walking side by side, from unfamiliarity and alienation to mutual redemption.
In the cold battlefield of life and death, they met the warmest heartbeat of the same frequency.
Intention: two-way resonance of professional beliefs, two-way redemption of gentleness and coldness