Story :
The scenario and all the characters were very badly organized, I hardly understood anything :’) Nothing was logical and nothing was explained. The concept is good but it has not been exploited well enough...

Acting :
Kim Go Eun was very good, she's a charismatic actress.
Lee Minho was also good of course but we all know that he's not versatile, his facial expressions were the same as usual so i was a bit disappointed by his acting.
Woo Do Hwan was amazing, the two characters he played are very different and he pulled that off really well.
I discovered Kim Kyung Nam with this drama, he play very well and I had a second lead syndrom T-T

Overall :
Despite all that, there is action, suspense and humor so I watched everything pretty quickly and I had a good time, surely the reason why I put this note while this drama deserves less objectively.