What is the detective story in the seventh chapter of Jay Chou's new album "Still Fan Texi"? Is it about Sherlock Holmes?

★ Let me show you the key points first. Detective Jay and his assistant Yu Hao have been chasing the bullets of the murder suspect, but Jay finally found out that the murderer who made this series of serial murders was not others, but officially his detective assistant Yu Hao. ★

On the surface, Yu Hao is the assistant of detective "Jay Holmes", but in fact, he is a murderous demon. After each murder, he must leave a "blue witch" (blue rose) at the crime scene.

In the previous murder, it happened to be photographed by a warhead who likes photography, so in order to kill him, the warhead became the target of Yu Hao's murder (at the end of the play, it was expressed in the form of narration).

At the scene of a detective investigation, warhead passed by and saw detective assistant Yu Hao. He turned and ran in fear of being killed. The strange act of running away when meeting a detective naturally made detective Jay take the warhead as a suspect, and then he has been chasing it with Yu Hao. Of course, the purpose of the two is different, one is to solve the case and the other is to kill people.

During an investigation, Jay was shot in the back of the head and passed out. Later, Yu Hao found the warhead's residence, burned the photos recording his murder, and killed the warhead. Then go back to the scene where Jay was knocked unconscious and pretend to faint.

Jay woke up and rescued Yu Hao from the scene. While carrying Yu Hao, Jay saw the ring on Yu Hao's right index finger. I flashed a picture before I was knocked unconscious: "A forefinger with a ring knocked him down from behind."

So Jay understood. . .