Du Cheng's watch and the glass water in his car, as well as all kinds of abnormal behaviors in this case, how could Shen Yi be so careful not to notice the problem? From the beginning of looking for evidence on Du Cheng, he became suspicious. In the video, there is an imperceptible figure. Shen Yi wants to draw it himself. In fact, he knew it was probably Du Cheng, so he didn't want to admit it.