Sometimes a secret is not necessarily a secret, but sometimes even if it is open, there are still many people who can not understand the secret. The key lies in people's perspective and thinking about the problem, as well as their understanding of the secret itself.

All police officers have a compulsory course in police school, criminal psychology! The subject has also been remade under the same name and has a good reputation in European and American dramas. Yang Yang is a loyal audience of the play, and can remember the details and classics of the detection process in almost every episode. Regardless of the authenticity of the content, at...