Read again? Yes
Number 12 of 12 in "Trouble is my Business." This is a good ending, since I'm sort of dealing with detective fatigue.
Marlowe's sitting in a little club, minding his own business, chatting with the bartender. There's a fat guy at the other end of the bar buying and devouring his booze a shot at a time. Other than these three gents, the bar's empty.
Another man enters and asks some very specific questions about a woman, right down to describing her clothing. No one's seen her. He turns to leave.
Fat Guy shouts at him, then pulls out a gun and wastes him, walks out, and steals the man's car.
Marlowe finds the woman without even trying (she turns up in the hall near his apartment), but then things start getting complicated.