Treacherous twins and double (or triple?) agents abound in a twisty-turny look at the unlikely nexus of international espionage and quantum physics. Simultaneously channeling John le Carré, Albert Einstein, and Mel Brooks, Stoppard’s Cold-War thriller boasts equal shares of brains, guts, and sly humor. Kate Burton takes on the tour-de-force title role, the brilliant but eccentric British intelligence chief working to expose a Soviet double agent while trying to keep her personal life under wraps.