DISCLAIMER: My opinion, that's all!

The concept of this drama reminded me very much of many US shows, police procedurals in which they usually pair up a gruff but extremely honest policeman and a quirky highly intelligent civilian (mostly mathematicians or psychology professors or some such profession) who comes up with the right remark/discovery at a crucial moment thereby solving the case gaining admiration by everyone!
It is the same here: this time an art history professor and highly skilled painter is brought in to help with investigations. At first there is animosity between him and the detective but that quickly vanished when the painter skilfully solves the case in the nick of time, impressing the detective who becomes his main fan.
I was actually a bit disappointed that the conflict was resolved so quickly: I hoped for the tension to last a bit longer. From episode three onwards, we were on the full bromance(not chines censors' one though which it could have been seeing the physical differences between two characters who looked like they just came out of a shounen ai manhua!LOL).
Once their relationship was firmly established, we were treated to a series of "case of the week" episodes featuring different stories: murders, scams, suicides (the slightly GL overtone one did not sit well with me: it sent the very wrong message!)
Over these 20 episodes we did not find much about the main characters: their past and their families are barely mentioned.
And this is where the plot holes come in: the detective comes from a well off family but was caught being a delinquent in a gang fight. Painter looks like he was a homeless kid, taken in by a kind art teacher but still living as a rebel? He was nearly drowned to death (who saved him the first time?) and forgot the face of the woman who asked him for a sketch (that too: why did she have a photo of a 3yr old to find someone easily found 30 years later?I must have missed the explanation!LOL). A psychologist told him he needed to have another near death experience to jog his memory but he had had another such event just a few days previously and nothing happened to his memory. As the plot progressed, the painter got to have many new capabilities: highly observant, highly knowledgable in anatomy, highly competent in psychology (the way he manipulated the computer baron was amazing and of course chess master and extremely talented painter.Makes you wonder how the police managed to catch anyone before he joined with his drawing skills.
Last but not least, the police is painted in such a positive light; everyone is nice, honest, competent, trustworthy and cheerfull, supporting each other for the greater good! Amazing!

The paintings and the drawings were beautiful: in the last scene we are shown sketches of characters from the cases they solved and each sketch is in a different style! There are some really pretty pictures! The painter who did these for the drama production is a very talented individual!

I must admit that as much as I enjoyed this at start, I was getting bored with it by the end. It is not half bad, a fun watch but I just have trouble getting used to c dramas. Again I had the impression they first filmed everything, edited everything in a block then chopped it up into 40min pieces: sometimes the episode would end mid-sentence. They should really learn how to make a cliffhanger cliffhangy!