The Big Sleep

When a dying millionaire hires Philip Marlowe to handle the blackmailer of one of his two troublesome daughters, Marlowe finds himself involved with more than extortion. Kidnapping, pornography, seduction, and murder are just a few of the complications he gets caught up in.
"Chandler [writes] like a slumming angel and invest[s] the sun-blinded streets of Los Angelos with a romantic presence."
--Ross Macdonald "From the Trade Paperback edition."