So many people comparing it with Bad Kids so here is my opinion:

It is a well-executed drama with top-notch acting.
I won’t say it is better than Bad Kids because these two dramas give different vibes though written by the same author. But I’d say it deserves 9.2 on Douban and it is definitely worth your time.....

Story- 9/10
Story is like investigation+mystery, revealing clues in small doses in each episode
It didn’t use unnecessary twists like a good guy turning bad in the last moment...
Yet first few eps were a little bit confusing as multiple characters were introduced, but as the story continues, it gets better and better...
I love that every little thing,I didn’t understand in the early eps were all solved in the last few eps
The plot is heavy and you need to give full attention to the plot as it shows past and present days alternatively

Acting-10/10
Well, Actings in all Light on Series are top notch, and Long Night further proved it
Bai Yu’s acting in last few eps were brilliant and mind-blowing
Liao Fan acting is quite impressive as well
All Veteran actors did their best, I love the trio moments most, and how they helped each other

Others Aspects
In some parts, dubbing was a lil off but it is fine overall. Editing is good, far better than Crimson River.
I love how they show things like “Laws are sometimes useless, rich people doing whatever they want, and how corrupted some authorities are”

You know a drama is good when it makes you cry
I cried for at least 3 times, so it is def a good drama.

If you want a serious theme drama, this is definitely for you