So, over all this is actually a good show. That's an objective opinion based purely on the plot and acting. But the write up for the show is NOT accurate, since it makes it sound like it's about Chen Yu and Wu Zhengfeng, 'childhood friends', working together through some personal hang ups and misunderstandings as well as all the drug dealing mess to solve their issues and a case, but the show barely focused on them.

Basically, this show is about drug dealers and cops, in general. There are many characters doing many things and CY and WZF are barely a side story for 80% of the show. So if you're looking for a story about the MLs friendship struggles/moments with the cop/drug drama on the side, this show will not deliver, it's the opposite way around. It will however, tell an interesting story about some local cops and drugs dealers with some bad history and it has some good scenes and interesting developments.
Let's start with...

THE GOOD;
- As I mentioned, the acting is good for everyone here, but especially amongst the drug dealer/addict casting imo. Most of the characters don't behave all that predictably either, which is good in any show about suspense and crime. For example, at first we get the impression Hao Dong is very calm and dangerous, but as the show goes on, we see he's actually quite a mess and he loses his cool and composure quite hysterically. Quite a few characters had interesting behaviour as the show went on, ranging from serious to mildly amusing, to confusing.
- I like Lan AnRan as a female character in a cop show, I think she should have had more of a presence in the show.
- Good budget for this.
- Entertaining over all, albeit with a slow start.

THE (mildly) BAD;
- The show has a really slow start. I actually watched until episode six the first time, and then shelved it for months before I picked it up again. The show really only gets going in faster pacing around episode 20 or 21, which is not a good thing for someone who doesn't have the patience for a slow build story.
- Some of the dialogue scenes are waaaay too drawn out.
- Chen Yu's character is basically a clown (and comes across as a less than adept cop) for more than half of this show. I actually had no idea how he missed some things, was surprised by how no one noticed him tailing/following them, and why he did a lot of things he was doing. Also, his superiors and even WZF made him look like an idiot a lot of the time, but not out-rightly. Sort of like, they think he can't handle anything, so they leave him running around without a clue, making him look like a twat. I found this both funny and frustrating. But when he finally caught on, it was much better.
- Chen Yu and Wu ZhengFeng barely seem like friends, let alone good friends. They hardly seemed to give a shit about what the other was feeling or suffering for the most part, but then in the final episodes when they finally get on the same page, it seemed forced how they were suddenly all BFF's and gung-ho about protecting each other like it was a competition. LOL.
- Yang Yi being shot the way it happened was not well directed imo, because the way he tried to arrest Yang XingQuan didn't follow any logical police safety procedure (trying to grab his hands and cuff him from the front??) or proper training. An actual struggle between them or YXQ just shooting Yang Yi before he even got close enough would have felt more organic.

There was nothing UGLY in this drama, so I'll move on to...
THE HIGHLIGHTS;
- Chen Xiao as Wu ZhengFeng was good casting I think. He looked both shady and oddly innocent, which suited the character he was playing.
- When Chen Yu was pretending to be a drug dealer the first and second time, those were highly entertaining moments, once again making me want to watch WY play the role of a bad guy.

A one time watch for this is fine, if you can make it through twenty episodes of slow build.