The incredibly watchable Fargo upends the rules of crime drama

The Fx series Fargo continues to be incredibly watching and intriguing through the first 5 episodes; it's notable how this series upends the rules and conventions of crime drama. We know, pretty much, exactly what happened in the triple murders in Bemidji, Minnesota, in 2006, and the story line essentially involves the pollice officers, from two departments (Bemidji and Duluth), sometimes bumbling, possibly even corrupt or maybe just plain cowardly and defensive, come to the same level of knowledge that we have. The mystery, for us, is what exactly motivates the main antagonist - Billi Bob Thornton, excellent as Lorne Malvo: is hie just a hit man, gun for hire, with no known back story, who sometimes freelances and initiates his own crimes of revenge or opportunity? Or is there more of a back story? Of course what also continues to drive our interest is the peculiarity of almost all the characters and the particular warmth of the leads: the bumbling Morton (?) Freeman as the inept insurance salesman who murders his wife (the part William Macy created in the movie), Allison Tillson (?) as Molly, the homespun and surprisingly astute small-town cop (the Frances Macdormand part), and Colin Hanks as the sweet and protective copy in the "big" city of Duluth who seems to be getting in way above his head and is developing a shy crush on Molly as they work their leads together - both opposed by dunderheaded superior officers who may be protecting something higher up or may just be protecting their own asses.