A Dance at the Slaughterhouse — Lawrence Block

The police can't prove that socialite Richard Thurman arranged the rape, torture and murder of his beautiful, pregnant wife. The dead woman's brother thinks Matthew Scudder can. During his ongoing battle with the bottle, ex-cop ex-boozer Scudder left a little bit of his soul on every seedy corner of the Big Apple. But this case will drag the tormented p.i. deeper into the mire than he's ever been before--launching him on a lethal and terrifying tour of New York's "snuff" film, sex-for-sale underworld ... where an innocent young life is a commodity to be bought, perverted and ultimately destroyed.