When double spy Sergei Skripal and his daughter Yulia were found dying after a nerve agent attack in Salisbury in March 2018, Graham Yuill, a former Royal Military Police corporal, immediately suspected Russian involvement and a cover-up by the police. As he follows media reports on the Skripal attack, he finds the same level of cover up and contradiction that obstructed the inquest into the murder of Mountbatten. He kept his mouth shut for thirty years after the IRA bombing. Not this time. With his sceptical girlfriend Lizzie, a nursing sister, he sets off for Salisbury to begin his own investigation. With archived material compiled from across the world, combined with evidence obtained through the Freedom of Information Act the story of Colonel Skripal unfolds layer by layer like a mystery thriller to provide a more credible account of what really happened that spring day when Salisbury was visited by Putin's Assassin. If the powers of the state covered up system failures that killed the Queen’s second cousin, what did that tell us about the slow confused drip of information about the attempted murder of Colonel Skripal and his daughter Yulia on 4 March 2018 in the streets of Salisbury? Time to find out.