The Spy Whisperer

Six senior MI6 officers are mysteriously dying by apparent suicides as they compete for the top intelligence position, but these deaths are far from accidental. Former MI6 officer Ben Sign is tasked with uncovering the true killer, believed to be within the ranks, as he navigates London and beyond to track down the elusive murderer known as "the whisperer." Joined by a former undercover officer and a Special Branch agent, Sign faces a deadly game of deception and espionage, with the help of a former special forces assassin known as "the limpet."