Series with a parallel global theme are often poorly made, and the path of the subconscious story is lost in the middle of the series.
But in this drama, we see a good storytelling that encourages the viewer to look for answers to the questions and watch this series every minute.
There are good flashbacks in this series that gradually explain the story to the viewer, which is the power of storytelling.
Of course, there is a slight weakness in kcsi inspectors, because sometimes we see them incompletely inspected, and in the process of investigation, detectives in the area that has already been thoroughly examined, discover new evidence, which kcsi inspectors should have already noticed.