Produced by Guy Ritchie. Written by Guy Ritchie. Directed by Guy Ritchie. Good job, Guy.
It's a complex, intricately plotted story of the British marijuana trade. Since pot is still illegal in Great Britain, the folks in charge are criminals. Very rich criminals, but still.
The narrative is framed by sleazy private eye Fletcher (Hugh Grant) blackmailing Ray (Charlie Hunnam); Ray is the consigliare to the big boss, Michael (Matthew McConaughey). (Fletcher was hired by even-sleazier tabloid magnate "Big Dave" (Eddie Marsan) to expose Michael, in revenge for a social slight, but Fletcher figures he can do better for himself via his blackmail scheme.)
Michael is trying to put together a nine-figure deal (where those figures are in British pounds) to sell off his empire to Matthew (Jeremy Strong); his goal is to retire and kick back with his lovely wife Rosalind (Lady Mary herself, Michelle Dockery). But there's no honor among thieves, and a lot of effort is put into pushing the deal off the rails. Violently.
Well, that's just the tip of the iceberg. There are a few more major characters, and a bunch more minor ones. And there's not a lot of downtime, no strolling by the river to ponder the meaning of it all. The also movie jumps back and forth in time a bit, too. You have to pay attention!
There's also a considerable amount of absurdity and humor amidst all the mayhem. Good stuff.