kim sang hyuk

If anyone checking the comments, don't bother. Just give it a shot. THIS IS THE BEST DRAMA I've watched. I mean, it really makes you feel the life of each character, and the actors are just so brilliant at acting. IU is the besstttt.

U can watch kill it, he is the lead actor there. it's really good but it has a sad ending.

JUst finished watching it.

Watched it for Namgoong min and truth to be told, it was worth it. It is a well-made thriller with brilliant acting.
There was a slight romance, either way I loved it.