Luo Yanran works alone in the city to investigate strange cases, while Li Lingfeng diligently serves in the police force. Luo Yanran is clever and level-headed, with exceptional powers of logical deduction. Li Lingfeng is a chatterbox, but meticulous and highly skilled in criminal investigation. As they work on their cases, they uncover secrets behind their respective identities. It turns out they have both been drawn into a criminal syndicate’s conspiracy...