This is quite simply one of the best dramas ever made. It hits the trifecta of great writing, great acting and great directing with astonishing aplomb. If you want to watch a show that manages to take a single case and from that moment on weave through a web of tangled relationships and complicated motivations without dropping the thread once, watch this drama. If you want to watch a show where two people have instant chemistry that isn't romantic but still sparks because they just get each other and are better for it, watch this show. The two main characters have such a satisfying rapport that doesn't need to be romantic. That doesn't mean that other characters fall short mind you, and it's so amazing to see the arcs of the other characters, the fact that they even get them elevates this drama to the upper echelon of dramas alone. The fact that this is this writer's first drama is astounding and I can't wait for their next project, although this one set the bar insanely high. The fact that the tension through out this drama didn't waver once and that everything concluded so satisfyingly is an amazing feat unto itself. I might add more later, but for now this is easily one of the easiest recommendations to make. If you like a insanely well made drama about crime and mystery, drop everything and watch this. And even if those are not your jam, give this a go, I'm sure you won't regret this.