When Mart travels to San Francisco for Sam's wedding, Arnett follows him, then weasels himself into the Staples’ home during the reception. Raising suspicion with his persistent questioning of the staff, he is confronted by Helen. He refuses to reveal his client, but intimates to her that Sam is responsible for the Reno murders. Still wounded by Sam's betrayal, she returns the "favor" by offering some valuable but minor information about Sam and Mart to Arnett. Whose side she is on begins to cloud over...