Lin Chen was just a detective on the verge of being suspended.
Then one day, at the scene of a bizarre murder, he found an old police badge left behind by his mentor.
After that, he began seeing things ordinary people couldn't.
The marks on the victim's neck weren't strangulation marks, but ghost handprints.
The figure that vanished from the surveillance footage wasn't the killer, but a spirit possessing a corpse.
The murder cases that should have been closed gradually began pointing to the same name: the Nether Ferry Society.
The Corpse Well Grievance Case in China, the Night Parade of a Hundred Demons in Japan, the Blood-Born Curse Baby in Thailand, the Malevolent Spirits of a Shamanic Rite in Korea...
Thus began an investigation into supernatural cases spanning four countries.
Some say the police handle the world of the living, while mages handle the world of the dead.
But Lin Chen doesn't believe that.
He only knows that when someone dies in a case, it has to be investigated.
Even if the killer isn't human, he still has to be caught.
When the police start hunting ghosts, the ones who should be most afraid are no longer the living.
