The Leander pearls were stolen nineteen years ago. The thief was caught, but the pearls were never found, and there is still a $25,000 reward for anyone who finds them. Out of the blue, a woman comes to see private detective Carmady, Philip Marlowe in later editions, with a story about a guy who knows where the pearls are hidden. Our PI agrees to talk to the man but finds him dead in bed. It seems there are quite a lot of people in Los Angeles who have heard the story, and who are out looking for the Leander pearls!