Well... turns out they weren't. This drama is worth your time, but only up to episode eight. As other's claim, it went downhill from there. Don't be naive like me and ignore the reviews just because it looks promising at first glance. If you're looking for an ending you'll be satisfied with and a drama that keeps your interest all way through, this isn't for you. I am personally very into thrillers and I bet you are too! It starts out so good and promising that even I thought people left poor reviews for no reason. It was totally my type of drama and I was very happy to have found this content as I am currently in a lack of dramas to watch. However, this didn't make the cut and there's so many better thrillers out there that didn't mess it up this much. Also, the problem doesn't come down to anything but how the male lead develops in the end and completely goes against his own morals. More or less, he becomes the bad guy in the screenwriter's desperate attempt to build up for a possible second season. All of which gave the opposite effect: I have lost all reason to watch another season. Again, if you want to save yourself some time and disappointment, make episode eight your ending and you will leave satisfied. My rating is high solely for the first eight episodes, as I think episode eight would have been the perfect way to end the drama. If I were to only rate the four last episodes... let's just say it wouldn't be this good. And if it would have ended like it should have, it might just have been one of my favorite thrillers.