Measure for Measure is a comedy the same way oral surgery is an afternoon at the spa. “Some rise by sin, and some by virtue fall” may be the most famous line. Plenty of sin to be found here. Virtue, on the other hand, you couldn’t find with a flea glass. Any good Shakespeare nerd will tell you about the “problem plays,” where Will took on a moral problem, which he didn’t solve 10 times of out 10 (okay, there are only 3 problem plays). Measure for Measure even ends with an unanswered question,...