**When the truth is deliberately buried, only the paranoid can uncover the lies beneath the blood. **
During an autopsy in an abandoned factory on a rainy night, forensic doctor Qi Yan found a dark red triangular mark carved on the inside of the deceased's wrist - the same as many unsolved cases she had handled. She secretly kept key evidence, but she didn't know that she had already become prey.
Cheng Jin, the leader of the homicide team, has a cold style and hates any behavior that crosses the line. When he discovered that all the victims were related to an unsolved case ten years ago, and Qi Yan's father was the forensic doctor in charge of the "suicide" that year, he had to cooperate with this stubborn woman.
**A mark that connects ten years of unsolved mysteries;
A conspiracy involving a dark network of power and interests. **
When the investigation points to the "Blue Ocean Club" where political and business celebrities gather, Qi Yan and Cheng Jin gradually uncover an organ trafficking network that is larger than imagined. And the death of their respective fathers was actually related to this organization...
**In the pursuit of the truth, the most dangerous person is never the murderer, but those who desperately cover up the truth. **
**"What you think is a coincidence is a carefully designed necessity."**
