I'm just writing this review because I see this is a very underrated drama.
I simply love this kind of story where normal people accidentally commit a crime and get caught in a spiral of shit as they try to conceal their guilt and get involved with real big criminals. Actually this drama reminds me a lot of Fargo but without the the dark humor.
This short length format really benefits the story, no boring moments, only what's relevant. I wish more cdramas would use this format.
The acting is very good, very on point, Qin Hao is a excellent actor. People say The Long Night is the sequel to Burning Ice but this Yan Liang is a completely different character with a completely different personality.
Cinematography is great and I liked that there was no dialogues preaching moral lessons as is very, very common in crime cdramas. We see through all that happens that crime doesn't pay and one can't hide the truth forever, we don't need anyone saying this. This way the viewer's intelligence is not offended and the screenplay becomes richer.

My conclusion
If you like crime stories just ignore the relatively low rating in this site and watch this great drama.