Park Dong Ha is a loser.

He isn't a bad guy, he's just quite fucking stupid.

In fact, he is so stupid, his wife wants to divorce him because of that. On top of that, he "invested" money meant for the treatment of his terminally ill son to give a bribe in return for professorship, which terribly backfired, and he lost the former and didn't get the later. It's only a matter of time until his wife finds out and his life will get even worse(he might even get scolded or spanked, oh the horror!)....
Fortunately, fate smiled upon him. On the way back home, he found a car with two dead men inside and lotsa money. LOTSA.

So what does our genius of intellect do? He takes all of it. Then he dumps their car in a nearby woods, and buries the bodies next to his own house.
A perfect crime! What could go wrong? Oh wait, why is a phone ringing from under the ground...?

.....and thus the tragicomedy begins. Our genius of intellect is going to get involved in multiple plots and schemes, trying to navigate reality not unlike Mr. Bean trying to park a car, and providing a nice source of entertainment for us cynical people.

This is superposed with very chill western-like music, a pretty cool plot about inner mafia conflicts, and a corrupt cop investigation. As well as, uh, a rather tragic story of his "model" family kinda falling apart.
All these plots tie together rather nicely, and I am rather impressed by how the writer managed them all.

The style of the drama is noir. That is bleak colors, with lotsa smoking, people talking in hushed voices, and nihilistically soothing atmosphere.
Everyone's acting is on spot, especially Park Hee Soon's who once again plays a gangster(he was brilliant both in My Name and here!) and Park Ji Yeon whose asmr like voice is my new favorite in dramaland.

Overall hard recommend, just don't expect something like empowering story of an average guy climbing up mafia ranks or something. See it for what it is.