Finally. After watching so many frustrating dramas, this drama made the difference. Same with signal. Breathtaking. Has lots of twists and turns but the plot was so great. I'd like to commend the writer for doing this drama as well as the.actors and director. Not a predictable drama. Thank God for great dramas like this. I'm so happy i watched this. It's a high quality drama. Not just another drama with a horrible plot.