The ratings and reviews of this drama are commonly low. For some reason, people didn't find this drama a good movie. Instead, people hated it. Now this is my honest and personal opinion about this movie.

I think this drama would end up well if the story wasn't confusing. When I watched it, I asked myself 'why people hated this drama when the actors did a very good job on acting'. Well the answer is simple...just because the story was a shit. I literally think this drama would change a lot of perspective in kdramas and I would consider it as one of those hollywood movie IF the story wasn't CONFUSING. I am so confused of their past, the reasons and how things end up that way. I am sooooo CONFUSE on their identities and which is who or which is the REAL. Also the ending suck so bad! This is literally a 2hr drama and they gave us a very CONFUSING and piece of shit ending like can someone explain me the situation!?This movie was failure! How can they provide a 2hr movie and still is very confusing. I did not understand a single thing about it.

Now if you ask me, is this movie or drama worth to watch!? In my case, I only watched it because I was intrigued on why this movie has a low rating when the cast is Kim Soo Hyun? But all in all there was nothing interesting on it.
It's not for me to decided because you never know, someone might actually understand on what the f is going on in that movie. That person is a legend!
So if you ask me, go watch it! it's not that bad if you ignore the shitty confusing part. Cause for me? I only survived watching that just beacuse Kim Soo Hyun looks so attractive in this movie and Sulli is so gorgeous but other than that everything was a SHIT. anyway thanks for reading my OPINION :)