In the city of Haidu, beneath the glittering modern metropolis, undercurrents have never stopped surging. A series of vicious crimes, each committed in an unusual way and with motives shrouded in mystery, shattered the surface calm.
Ling Yao, captain of the city's criminal investigation squad, is widely regarded in the field as a brilliant crime-solver. Yet an old case that has lingered for years has built a wall around his heart, leaving him cold and hard as stone. Su Wan, a talented new forensic pathologist (or criminal psychology consultant) with an air of mystery, can understand the language of the dead and read the minds of killers. She, too, seems to carry a past she cannot reveal.
A ritualistic case dubbed "Rose Remains" forced the two, so different in temperament, to become partners. At first they distrusted each other and clashed over their beliefs. But as they joined forces to solve bizarre cases such as "Silent Testimony," "Perfect Mask," and "The Clock Reversed," they gradually became partners who understood each other without a word and would entrust their lives to one another.
They discovered that behind these seemingly independent cases, the same dark thread seemed to run, faintly connecting them all: a mysterious presence codenamed "Heart Eater." Its vast criminal network, Ling Yao's unresolved old case, and the secret Su Wan was pursuing had woven together into a massive web. Their enemy was powerful and cunning, its influence reaching everywhere. Every step closer to the truth came with a deeper trap and greater sacrifice.
On one side were serial crimes shrouded in fog; on the other, a deadly conspiracy surging beneath the surface. As Ling Yao and Su Wan pursued justice and the truth, they would have to face the darkest evils, lay bare the scars within their own hearts, find warmth in each other, and light the way for one another.
This was the ultimate contest of intellect and courage, and also a journey of finding light in each other in the darkness
