When everybody thinks you are someone else, when you are part of everyone else’s déjà vu, when there is just no explaining the look in that mysterious woman’s eyes, here’s what’s going on: Your identical twin, the one you’ve never heard about, has just come back into your life. Hang on, because it’s going to be one wild ride. The Comedy of Errors, Shakespeare’s effervescent fugue of mistaken identity, will turn over your giggle box and spill out laughter you forgot you had. This is Shakespeare for the sheer, rollicking fun of it.