The Sternwood sisters attempt to seduce a man in this profession in another novel.
This is the job that writer Daniel Quinn takes in Paul Auster's novel City of Glass.  A man in this profession knocks out Joel Cairo after Cairo pulls out a gun in his office.  Later in that book, that man in this profession turns Brigid O'Shaughnessey into the police. The Sternwood sisters attempt to seduce a man in this profession in another novel. For 10 points, name this profession of Philip Marlowe and Sam Spade, the protagonists of Raymond Chandler's The Big Sleep and Dashiell Hammett's The Maltese Falcon.
This is the job that writer Daniel Quinn takes in Paul Auster's novel City of Glass.  
detectives [or private investigators]