An Englishwoman is found dead in a house near Rome, her neck broken. Her distraught husband enlists the help of his closest friend, policeman Chris Bronson, who discovers an ancient inscription on a slab of stone above their fireplace. It translates as 'Here Lie the Liars.' But who are the liars? And what is it they are lying to protect? Pursued across Europe, Bronson and his ex-wife uncover a trail of clues that lead them back to the shadowy beginnings of Christianity; to an ancient code inscribed upon a stone; to a chalice decorated with mysterious symbols. And to a deadly conspiracy which - if revealed - will rock the foundations of our modern world.