On the bank of the river in the north of the city, four corpses were found, all dead in the same way - neck strangulation marks, strange smiles, and lycopene levels in their bodies exceeding the legal limit by hundreds of times.
The four murder cases were deliberately dismantled and hidden in filing cabinets of different years. It was not until the body of logistics boss Zhang Debiao was discovered that the iceberg of truth was revealed.
Interpol Zheng Yi was ordered to form a five-person special team to take over the case. But he hides a secret that cannot be told - there is a second personality living in his body. During the day, he is the enthusiastic and cheerful backbone of criminal investigation; late at night, another "he" will wake up, sneak into the crime scene, read the encrypted files, and leave clues to solve the case with handwriting as precise as a machine.
In three months, "Ye" helped him solve three unsolved cases.
Until the case of Zhang Debiao, "Ye" wrote a line of words on the note that had never appeared before - "People in the red tide know me."
The clue points to the "Red Tide", a cult organization that collapsed eleven years ago. The leader, Zhong Muzhi, was rumored to have been killed, but "Ye" said he was still alive.
As the forensic doctor discovered a mysterious compound capable of hijacking nerve signals deep in the deceased's cervical spine, the darknet hunter was reverse-located, and the insider's IP actually pointed to the police. The five-person group was dragged into an abyss that spanned eleven years.
When the true identity of "Ye" surfaced, and when Zheng Yi discovered that his memories from the ages of twelve to nineteen were all blank, he had to face a fatal question: Is the other personality in his body a shield to protect him, or is it the enemy's deepest chess piece buried in his body?
Chasing murderers during the day and solving puzzles at night. Five people form a group, each with a secret. The layers of reversal point to the deepest darkness and redemption of human nature.