Edward Henry Malik, a British MI6 handler with a complex heritage, has spent four years managing an operative known as Nightingale within Pakistan's ISI to monitor threats against Britain. Following the death of Osama bin Laden, Nightingale is compromised and Ed loses everything. Stripped of his MI6 role, he retreats to London's East End, seeking a mundane new life and unexpected love. But Ed's knowledge is dangerous, attracting the sinister gaze of Javid Aslam Khan, Pakistan's formidable intelligence chief. Now ensnared in espionage's perilous web, he faces a new game of trust and deceit amid talk of insurgents and a looming threat of catastrophic terror.