One is a "dangerous and unpredictable" death row inmate, and the other is a rookie policewoman who has just arrived, forming the most terrifying crime-solving combination in history. No. 123, The mysterious bus, the campus bombing incident, the blind box, the curse of the straw man, the strange talk at the intersection... One after another strange events that are beyond common sense will reveal to you another unknown side of the world... It is very scary, imaginative, and the ending is unexpected.