In the bustling city, countless baffling crimes lurk beneath the surface. Li Yue, a professor of criminal psychology and a psychological consultant to the police, meets Lin Ping, a young and courageous policewoman, while solving a complex case. Together, they crack several gripping psychological crime cases, revealing both the darkness and kindness of human nature.
At the police force's request, Li Yue helps solve a series of seemingly bizarre cases. As they pursue the truth, their feelings for each other gradually grow warmer. Lin Ping admires Li Yue and harbors a secret crush on her, while Li Yue is conflicted as she confronts her own feelings. As the investigations deepen, they support and encourage each other, gradually falling in love and bravely facing the challenge of a relationship the world will not accept.
Theme: Exploring the complexity of human nature and the courage and persistence of love in the face of challenges.