A Scottish lord becomes convinced by a trio of witches that he will become the next King of Scotland, and his ambitious wife supports him in his plans of seizing power.
 
Let's keep this simple.  Kathryn Hunter is amazing and if you're a fan of William Shakespeare, then this film is a "must see".  Nuff said.
 
FUN FACT:  This is the first solo directorial effort by Joel Coen. All of his previous films have been co-directed by his brother Ethan Coen, though Ethan was uncredited as director until 2004.