On a rainy night, a woman's body is dumped. Her corpse is clean and unmarked, her cause of death a mystery, but a bizarre cross is carved into her palm.
Criminal Investigation Deputy Captain Lu Chen returns to duty and immediately encounters a seemingly perfect crime. As he investigates, he realizes it is the work of a serial killer who has been dormant for six months.
The corpse is silent, yet conceals the most chilling truth;
the cross-shaped mark is the killer's taunting challenge.
A demon with a medical background lurks among ordinary people. Old cases overlap, and the fog grows thicker.
Following the corpse's silent testimony, Lu Chen pursues the killer and descends into layer upon layer of an abyss. With every step, he draws closer to a terrifying truth that will overturn everything he thought he knew.
Hardcore criminal investigation, serial murders, high-stakes twists. In the depths of the abyss, the echoes of evil never cease.