The main line of this play is to track down the suspect who killed the old captain. A mysterious woman asked the painter Shen Yi to draw a portrait of a 3-year-old child in his thirties. The woman recognized him as the captain of the police force according to his portrait and killed him. Du Cheng, the new captain, has been chasing the suspect who killed the old captain for many years, and he is still worried about the death of the old captain caused by the portrait of Shen Yi. However, Du Cheng gradually realized that Shen Yi didn't do it on purpose, so they began to work together and repeatedly cracked strange cases. In order to track down the mysterious woman, the whole play was performed, and then the plot was faster and more enjoyable.
Shen Yi, a painter, not only has the ability to draw a big picture when he was three years old, but also can draw the whole picture of a character's face according to an image wearing only a mask, restore the whole picture of his face according to bones, and even draw bones according to his face, and infer the portrait of his husband according to the portraits of his wife and daughter.
Shen Yi is a painter and a university teacher. In the gap between solving crimes, Shen Yi will also explain some secrets in famous paintings to his students, which is really wonderful.