It's rare for me to watch a cdrama, I don't like them much, but this one surprised me for the positive.
I give it a try because of the male lead that was very good in '' memory lost ", that was one of the few cdramas that I enjoyed watching.
Speaking of the drama now:
¬the cinematography was amazing, BREATHTAKING ;
¬the music fitted very well with the theme of the drama;
¬the story was not BAD (it wasn't perfect just because there are still many things to uncover);
¬the acting was good, one of the best in all Chinese dramas, the main leads were very good (no need to say that the ML looked very handsome with that kind of mustache and those clothes);
I think It's worthy to re-watch it in order to catch all the little details about the crimes (maybe when we ear about a possible second season);
Now most important:
WE NEED A SECOND SEASON
I whant awsers, there are so much to uncover and we need to know what will happen to the characters, and of course we need to see more of those sweet moments between the main leads.
In conclusion, I liked very much of this drama, if you didn't watch it, YOU SHOULD .

P. S. If anyone knows something about the second season please tell me, I appreciate it.