Before he is killed, an acquaintance of Matthew Scudder entrusts him with an envelope of material to be opened in the event of his death. Turns out that Jake "The Spinner" Jablon has been blackmailing three people, and one of those people murdered him. Scudder sets out to determine who murdered The Spinner.
I do not understand why some did not enjoy this book as much as others in the series - I found it to be a brisk read with interesting characters. Bruen's Jack Taylor owes much to Matthew Scudder for inspiration.