After retiring from the special forces, Lu Zheng returns home only to find his family destroyed.
His adoptive father was killed in a staged car accident. His fourteen-year-old sister was abducted and turned into a human experiment, leaving no remains.
The medical prodigy Su Wan is searching for her missing younger brother. She goes undercover at a research institute that preys on people, taking step after step toward hell.
One is a fighter, the other a scholar; one works outside, the other within. They meet in the depths of the abyss.
They tear open the veil of power and lust that blankets the truth, and uncover Cloudtop Manor, built solely for the pleasure of the powerful.
Underage tribute victims, illicit drugs promising immortality, organ trafficking, cannibal feasts... The depravity goes beyond the limits of human nature.
But the most terrifying truth is this: Lu Zheng's biological parents, the very people behind his quest for revenge, are the masterminds holding this web of crime together.
A blood feud, with blood relatives turned enemies.
This time, he will make a blade of his bones and an offering of his blood, and ensure that every evil spirit is buried with the living.