Captain, Forensic Doctor Shen Has Arrived at the Scene.

A bizarre robbery and murder case made the fate of the two people intersect for the first time. Jiang Han could find almost no clues at the scene, but Shen Weilan could read the murderer's height, handedness and even mental state from a drop of almost invisible blood. Jiang Han became interested in a "nerd" for the first time, while Shen Weilan unexpectedly discovered that the methods of this case were subtly similar to the old case of the disappearance of his senior brother.