Requiem for an assassin - Barry Eisler

For master assassin John Rain, getting out of the life was never going to be easy. But with a new identity in Paris, and the help of his lover, Mossad agent Delilah, he was hoping to leave the killing business behind.Then he receives a message from rogue CIA operative Jim Hilger: We have your friend Dox. Do as we tell you, or the sniper dies.The choice ought to be easy: do the job a series of three hits and save his friend and partner. But how does Rain know Hilger wont just kill Dox once the assignment is complete? How does he know that each of the hits isnt also a setup for Rain himself? Most of all, how can he control the killing rage that Hilgers lethal game of extortion reignites inside him?From the deceptively tranquil beaches of Bali, to the boulevards of Paris, the urban chaos of New York, and finally to the old killing fields of Vietnam. Rain must grapple not only with his brutal enemies, but also with the latent killer inside himself a battle that not even Rain can hope to survive intact.