Keller's Adjustment by Lawrence Block

In this gripping tale, a hitman finds himself at a crossroads, grappling with the monotony of his profession and yearning for a change. As he navigates the complexities of his assignments, he begins to question his own moral compass and the path that led him to this point. The narrative delves into his internal struggles and the unexpected twists that challenge his perception of right and wrong, ultimately leading him to reconsider his life's direction. With a blend of suspense and introspection, the story explores themes of identity, redemption, and the search for meaning in a world where the lines between good and evil are often blurred.