Lawrence Block is an excellent writer, and he is at his best with the grim streets of New York and bleak lives of many of its inhabitants. Matt Scudder is an ex-cop who quit the force after one of his shots went astray and killed a little girl. Now, he works as an investigator. In this story, Jerry Broadfield, a police officer, has blown the whistle on his fellow cops. Immediately, a prostitute charges him with extortion. He hires Scudder to investigate, but before Scudder can do much, the prostitute ends up dead in Broadfield's apartment. Scudder suspects a frame up, but proving it is difficult.