This was written by the writer of Cruel City which was one of my favorite drama up until this day, but this drama was good 1-12 because after that I just lost interest. I as everyone else thought it was a drama about con artists and how the became the person they are, but it didn't go too much into it, so therefore i was disappointed. However, I liked the chemistry and they all play their role really well. I just wish there was more structure in the plot and it was flesh out. Overall, I enjoy it.