Wow, this keeps hitting so many of my buttons! I mean, I adore trendy dramas, but I feel it's fair to say that most of the ones I've watched so far do not involve police questioning, intrigue, or spies.
Also, Cha Song Joo continues to be made of pure win. Possibly even more than in the first three episodes, which I didn't think was possible!
(
Spoilers trick the police )