The show is trying to do too many genres at once. Crime, thriller, romance, drama, and comedy is too much. While I acknowledge their effort, it just made the show all over the place. Tones changing constantly, it's hard to know what to feel and when. It's like watching two different shows.
Episodes are pretty slow. I genuinely feel like it should have concluded in 16 episodes. The flow would've been nicer and the sequence of events too. I usually finish a 16-episode drama in a few days. This one took me 4 days just to get to episode 7. I keep pausing out of distraction and doing something else. Basically, it's NOT a binge-able series.
However, I enjoyed everyone's acting. While JCW is great, this is one of his inferior roles. His overall performance was good, but something was missing. Female lead was okay, she plays the "unfiltered" quirky girl pretty well. However, the female lead's wardrobe was so bad. I don't think she wore a single appealing piece of clothing, it was awful to witness.
While both actors are good at acting, they simply didn't have the chemistry I thought they would. This feels harsh to say, but they did not look that good together.
The story, in my opinion, would have been much more interesting if they were genuinely and actively searching for the ex-boyfriend's real killer as soon as it happened. Overall, the plot could have used better writing and flow. Would I rewatch this? No. Would I recommend it to someone? Probably not.