The Dancers is the club where Lennox is when Marlowe first sees him.
Cell Number Three is where Marlowe is kept when he is arrested for suspicion of murder after helping Terry reach his plane. Marlowe describes it as much better than the drunk tank though he doesn't say how he knows about the conditions in the drunk tank.
Idle Valley Road is where the Wades, the Lorings and the Lennoxes live. Marlowe notes that it's an exclusive subdivision and that he belongs in Idle Valley like a pearl onion on a banana split.
The Carne Agency is where George Peters works, it's an detective agency and has some information that Marlowe hopes will help him along in his search for Roger Wade.
