Interesting premise but horrible execution. Unfortunately it ended up being disappointing especially with how they handled both leads' characters. Aside from the main story, the side cases, investigations, and side villains all were mediocre anyway. The team doesn't matter, they were rarely shown, they had no existing persona, everything was led by and from the perspective of Tae Seok and they don't have any meaningful contribution even for the small cases. Which is why you can't consider this drama as one of those team investigation ones. Dare I say the drama was "less than average"!