“Angry Alan” begins with a brilliant and sensitive script by Penelope Skinner that is both seductive and raw.  Then we have John Krasinski – you know that sweet guy with the bowl cut from “The Office” 2005-2013.  (Yes, THAT long ago, so just take a moment and swallow.)  THAT guy gives a performance that is startling in its precision and depth.  Who knew?  Top it off with direction by Sam Gold, who has pulled every ounce of nuance out of this even and released it to the four winds.  This is a theatrical trifecta: brilliant writing, exquisite acting, and insightful direction.