This film had the potential to be among the finest espionage adventures I’ve experienced, if not for a truly dreadful conclusion! Nevertheless, Greta Garbo delivers an exceptional performance as the Mata Hari-esque agent working for the Czar and attempting to acquire information from Austria-Hungary. Following a shared opera box with him, “Tania” employs her considerable skills to seduce and deceive “Karl von Raden” …