Overall, this was an enjoyable drama to watch. Jo Jung Suk is a seasoned actor and he did a stellar job in this drama. It started off really well, with great set-ups for the key characters in the beginning. I was really looking forward to watching a bromance develop between Jo Jung Suk's character and that of Kim Seon Ho. Unfortunatelly, the story veers off somewhere in the middle, losing it's pacing and tension. It was frustrating to watch but there is reward for those who keep watching from the last quarter onward. In my opinion, the romance doesn't play such a big role in this drama but if you're looking for a good mystery, it worth a watch if you're patient enough to stick it out.