From his office on the Street of the Assassins, Nathan Sutherland enjoys a steady but unexciting life translating Italian DIY manuals.

All this changes dramatically when he is offered a large sum of money to look after a small package containing an extremely valuable antique prayer book illustrated by a Venetian master. But is it a stolen masterpiece - or a brilliant fake?

Unknown to Nathan, from a vast mansion on the Grand Canal twin brothers Domenico and Arcangelo Moro, motivated by nothing more than mutual hatred, have been playing out a complex game of art theft for twenty years. And now Nathan finds himself unwittingly drawn into their deadly business .