Keller's Homecoming by Lawrence Block

In this gripping tale, the protagonist, Keller, a professional hitman, finds himself at a crossroads as he returns to his hometown after years of living a life shrouded in secrecy and danger. As he navigates the familiar streets and encounters faces from his past, Keller is forced to confront the choices he's made and the life he's led. The narrative delves into themes of redemption, identity, and the inescapable pull of one's roots, all while maintaining a suspenseful atmosphere that keeps readers on edge as Keller grapples with the ghosts of his past and the uncertainty of his future.