a case about the most mysterious serial killer not only in the city, but also in your country, You work as a janitor at a police station, and several detectives and several high-ranking police officers, spend the whole day discussing murder cases, where the murders occurred formed a pattern which even now they are unable to understand, every pattern left behind seems to be deliberate to lure the police, but that night all the police and detectives went home without any results, You enter the room, and clean and organize all the messy things, and your eyes fall on a whiteboard filled with several photos of evidence, and victims of the crime, which are linked together by a red thread, you see that there is something odd, and start to fix it and after a while, you conclude that the perpetrator is the most unexpected person, namely the city regent, After everything was cleaned up, you went home, and in the morning, when the police and detectives returned, confusion and amazement swept over them, they were amazed and did not expect that the case that they are very difficult to solve finally solved, they are very confused who is the person who solved this case