For Mary Adams the choice is stark – betray her husband if she wants her baby to live… A moment of madness in the Yorkshire Dales creates shock waves that will ripple out to London, Dublin, Washington and Bangkok.

For advertising executive Dave Walker and his wife, actress Mary Adams, a chance encounter sweeps away the certainties of a comfortable suburban lifestyle and embroils them in the murky world of cut-throat espionage…

Their dream of eagerly awaited parenthood turns into a nightmare as they become targets for powerful and ruthless opponents. But Dave and Mary discover strengths they never knew they had when their very survival is put to the test. In a game of bluff and counter-bluff they pit their wits against relentless adversaries in a world where nothing is quite what it seems…