I started watching this without any expectations, I knew LJG from moon lovers and I read some reviews that said it was great until the last episode. I didn't know it'll end up being my absolute favorite drama.
The first 3 episodes are intriguing but a little on the slow side, and it made me think it was going to be a case of the week kinda show which I don't like, thankfully it isn't and the 3 cases were actually there to introduce the main plot line.
It's one of the few shows that actually gets better with every episode and there's a point were you just can't stop watching.
The romance is top notch and never boring, considering they're married with a kid, I consider it an accomplishment.
I understood what they were trying to convey with the last episode, and I loved that they gave themselves the time to have an actual episode long ending to resolve every loose ends, most thrillers just have them running until the last 5-10 minutes and then slap together an open ending or leave it's audience hanging.