From the outside, 45 Cranley Drive in Ruislip was just a regular bungalow placed on a quiet residential street in West London.
Before all was revealed, the neighbours stated that the occupants were friendly bookshop owners who enjoyed hosting parties.
However, it was soon discovered that behind closed doors, the two occupants were using the address to run a secret Russian spy ring to smuggle sensitive information about the British government back to Moscow.
