In the 17th year of the Republic of China, the "Rouge Night" massacre in Shanghai shocked both China and the world. Thirty-seven members of the Shen family, the richest man in the French Concession, died mysteriously and tragically overnight. Only Shen Yuan, the third daughter of the Shen family, stood on the mountain of corpses with a bloody blade in her hand, muttering repeatedly: "The rouge is red..."
Shen Yuan was sentenced to hanging, but mysteriously disappeared on the eve of execution. Five years later, when the new police detective Gu Qingci was investigating a strange "White Night Murder Case", he discovered that each corpse had a rouge mark painted in blood between the eyebrows - exactly the same as the mark in the Shen family murder case.
As the investigation deepened, Gu Qingci discovered that all the deceased had participated in the trial five years ago. The dead Shen Yuan seems to be back, but this time, it's not just the twelve jurors she wants to take revenge on...
When Gu Qingci followed the clues to the ruins of the Shen family, she found a diary soaked in blood in the underground secret room. The last page said: "Stop checking, there is a thirteenth person who died five years ago."
And that thirteenth name is clearly Gu Qingci herself at this time.
But five years ago, she was only ten years old and not in Shanghai at all.
Unless - she lost that memory.
And this memory is hidden in the rouge-colored birthmark on her left wrist.