In the bleak days of the Cold War, espionage veteran George Smiley is forced from semi-retirement to uncover a Soviet mole within his former colleagues at the heart of MI6.
One young woman with an unusual background tries to find and establish herself in the real world, which isn't exactly as festive as she hoped it would be.
The plot lags, the moral lessons are misguided, but are those fluffy little donut creatures adorable? Yes. Yes, they are.