Strong Opening Episode

Basically all you want from a good introductory episode. It captured the dark, unknown atmosphere of the show while giving us a glimpse of our four main characters and what led us upto this point. Why Hye-Jin is trying to die? Does she know about her husband or is there more than meets the eye? Who is Lee Joon Soo? Why does he eventually kill himself, as shown in the first minutes of the show? Why was that revealed to us so early? Questions, questions and more questions.

Forbidden love?!

Reading the plot I wondered if I should start this drama when I already know that the male lead is dead...and in the 1st few min.s while the detective was watching his pic.s I wondered can I really take it...but after a few min.s when they started telling the story I sort of forgot!!!
I'm hooked!...I don't understand why but there's something about this drama that draws me in...I know I shouldn't get attached to the characters but I can't help it!