Everything is wrong... all wrong! The letter wasn't written by Tang Xueying...

In a frame-up, she had been exiled to a deserted island and left to her own devices. It had been five years since they had last met, and she had taken the baby home, only to lose her memory. "You've signed the contract with me for three years," he said in a cold, determined tone. "Please take care of yourself," Yearning said through clenched teeth. You're a shameless bastard, Joe Muyuan...

Three years after she was married, Shen Chuwei was sent to another man's bed by her husband, and Shen Chu smiled at her. "I didn't know there was someone who liked cuckolding so much. If you like it, then I'll give it to you as a gift!" After that, Shen Chuwei was not wearing any green clothes, not to mention her green handbag, and even her office was painted a pale green! "Who told you to do this?" Shen Chu was slightly surprised. "Isn't that you?" And then the man who had been forced to give her a green hat turned into a wolf and pressed on. Shen Chuwei was forced into a corner. "What do you want?" Tango Yang approached dangerously close: "Who says a green hat is enough?" Shen Chu narrowed her eyes. "What do you mean?" "For life," said Tang Goyan, smiling and kissing her.

Each case is related to something special. Every trace breaks off somewhere without giving the detectives any logical solution. Everyone is different and understands the concept of serial killing differently. Some only catch evidence, others are intuitive and accurate. There is one case and there are countless detectives. What will each of them have to go through to get to the very end of the serial murder path? Will any of them find a solution?