The locals in the Italian village where he lives call him Signor Farfalla - Mr Butterfly. He is a discreet gentleman who spends his time studying rare butterflies. But Farfalla's real profession is deadly. He considers himself an artisan, not for the butterflies he paints but for the guns he creates for assassins. Farfalla has resolved to make his next job his last. Then, perhaps, he can settle down comfortably in the Italian village he has grown to love and enjoy the remainder of his life without constantly looking over his shoulder. But a treacherous circle is closing in on him...