A bloody wedding, a secret organization that has been hidden for many years, a serial killer who never stops killing...
Detective captain Fu Cheng encountered the darkest moment of his life on his wedding day - the bride Lin Yuqing died mysteriously, with a dagger engraved with mysterious symbols inserted in her chest. The autopsy results showed that she did not die from a stab wound, but from some unknown neurotoxin. What is even more shocking is that there was a micro tracking chip hidden in her body, and Fu Cheng knew nothing about it.
As the investigation deepened, Fu Cheng discovered that the murder was related to a series of unsolved serial murders five years ago. The murderer calls himself the "gatekeeper" and leaves strange symbols and obscure messages every time he commits a crime, as if he is looking for some kind of "key". And Lin Yuqing was the seventh victim.
In order to find out the truth, Fu Cheng had to cooperate with Su Li, a genius forensic doctor with a cold personality. During the investigation, the two gradually discovered that all the deceased were related to a secret organization called "Gate of Truth". This organization is involved in illegal human experimentation, mind control technology, and may even have infiltrated high-level police officials. What makes Fu Cheng even more unacceptable is that his fiancée does not seem to be an innocent victim, but has already been involved in this conspiracy...
**When the truth gradually emerges, Fu Cheng must face a cruel question:**
**Is he tracking down the murderer, or is he stepping into a game carefully designed by the "gatekeeper"? **
Purpose: entertainment