Great story considering it's a completely original script! And I really hope China can produce more of these quality original scripts and not solely focus on IP adaptations...

So for the good parts that I like is the fact that all these cases are somehow interlinked with each other under one big conspiracy. All actors here also acted relatively well and close to their characters, Wang Jun Kai's acting did improved over these years though I would appreciate if he can have more natural portrayal of minor emotional changes when met with sudden situations that caught the character off guard... Zhang Yi definitely have no problems with his acting, perfectly shown his character's growth from a reckless and immature rookie policeman to a matured man with responsibilities!

For some parts that I didn't find it realistic would be the fact that Zhuang Wen Jie being so naive on believing "harmless" people approaching him... Like he is born from a thieve family of generations and being wit and alert of their surrounding dangers would honestly be already an natural born instinct... Yet he trusted the villain so easily with just a few words that can't be crossed-check. And the whole time, both Zhuang wen jie and Luo Jian actually didn't quite trust each other even though they kept saying it. Like as a policeman, they are actually taught how to tackle people who are distrustful of police which obviously Luo Jian didn't use his skills properly instead kept making zhuang wen jie doubt his intentions...

And for most the story, actually it's not zhuang wen jie working with the police to crack the cases but rather him always getting caught in between the thieves and police and ended up struggling internally which side to believe and help.

For the viewers who are confused by the ending message, the dad is most probably not dead and has been actually hiding to see which path his son has chosen to walk. This drama series is supposedly a three-part series from what the producer had claimed which is why there is so many loose ends in this drama but I'm not sure if we would be able to see the other two parts air given how volatile the Chinese entertainment industry is.