Ring of Five

When the Secret Intelligence Service discovers a mole is betraying deadly secrets to the enemy, it assigns its best agent to investigate. But what if this spy hides a shocking secret of his own, and the investigator becomes the investigated? Based on the story of real-life British master spy Kim Philby, the inspiration behind James Bond, this riveting story is a thrilling and timely adventure blending espionage, politics, love and betrayal.