chunk: Mr. Norton, the company's chief, believes the death was suicide, but Keyes scoffs at the idea, quoting statistics indicating the improbability of suicide by jumping off a slow-moving train, to Neff's hidden delight. Keyes does not suspect foul play at first, but his instincts, to which he refers as the "little man", pointing to his stomach, starts nagging. He wonders why Dietrichson did not file a claim for his broken leg, and deduces he did not know about the policy. Keyes tells Neff of his theory outside Neff's apartment, while Phyllis hides behind the door. Keyes soon concludes that Phyllis and some unknown accomplice murdered Dietrichson for the insurance money, but needs more proof.