Great crime investigation drama with lots of twists!
12 episodes! Definitely too short!! Hoping for another season, but it's already been 3 years, so it doesn't seem likely...
One can still hope though.

I liked that it wasn't focused on one single plot, which is usually dragged along over the whole season, but split into several interesting cases, not overcomplicated, just enough to make the viewers want to know the answers. Also liked that there was no love plot at all.. very refreshing!
I also agree with some of the previous reviews, the chemistry among the characters was good, and the cast was excellent. The fighting scenes are great.

A perfect balance of drama, action, and comedy. Great actors. I didn't know Cha Tae Hyun before, but he got me curious enough to watch "Brain Works" next :-)
Thank you for a great show.