It could have been so good if they carry on with the story as in the first half of the drama. The first 6 epidosed are great. It keeps you engaged and you don't know what is gonna happen next between the taxi driver and the culprit.
But once the culprit went to China the storyline went downhill. I wish they would finish the drama around 6/7 episodes. It is a real shame as they did not use all the potential and it could be a great drama. The story keeps you engaged through the whole drama but I was loosing interest towards the end. I will not even talk about the imcopentece of the detectives...The villan character was perfect as probably the olny character in the drama. To my surprise a didn't even care how it is gonna end.

Overall it is a good drama but could have been great if the focused more on the storyline.