It tells the story of Luo Shu, who has a rough fate. She once helped the county magistrate, Han Mu Zhi, solve a major case. Since then, she has stayed in the county government as a detective to assist in the investigation. During the process, she met Qi Meng Lin, a young man who wanted to travel around the world. The two of them work together to solve many strange cases; they fall in love and grow together.