Based on the Baroness Orczy tale of Russian Imperial espionage, this is actually quite a fun, if insubstantial, historical drama. It all centres around attempts to free a Polish dissident from prison. At the time, Poland was a vassal of the Czar, and so a group of influential Poles coerce the Grand Duke "Peter" (Robert Young) to write to his father imploring his intervention. What's this got to do with candlesticks, you might think? Well these clever little ornate gadgets have secret compartments - easy enough to smuggle a letter in. When they are inadvertently moved, then sold-on a few…