Korean Drama "Happiness" is a dystopian drama that feels, nevertheless, close to home. The drama doesn't focus too much on the horror aspect, with the zombie-like disease, that could have been easily overused with loads of gory scenes and bloodbath.
Rather, the drama opted for a more character-centric story, with the focus being maintained on the neighbors and their dynamics when a crisis hits home. The addition of the corporation mystery, along with the family drama, were all a nice touch that added more twists to the main plot.
However, the drama missed making the conclusion clear, or more dramatic. Everything was actually too conveniently solved when everyone was straggling to come to a conclusion all throughout the drama. Also, the drama felt like it was missing something, like the story needed something more to leave a bigger impact.
Nonetheless, the performances were great and aided the entertainment value of the drama a lot. The CGI were also well made.
So, overall, 6.5 out of 10.