This drama is very hard to review. It's quite impossible to be unbiased when you are facing such great performance as those of Lee Joon-Gi and Moon Chae-won. The first time I was so pulled in by their acting that I forgot everything. The storyline is quite confusing, not because is a bad story, but I guess it's the classical case of wanting to put too many cookies in the jar. As a thriller with a limit of 16 episodes (more would have been redundant) it's very hard to follow the story of a serial killer active for generations and with ramifications into high up family, government and police. Add to the mix false IDS, family secrets, psychological issue and it's really too much too handle. Thankfully, a STELLAR cast among wich: Gong Mi Ja, Kim Moo Jin, Choi Jae Sup have a way to act while explaining that is superb.
I know I sound like a groupie, but seriously, Joon-gi and Chae-Woo reached their peak with this drama. NO EXCESSIVE CHEMISTRY between them. Just a normal MARRIED couple going through hell. Bravi.