chunk: A week later, Marion's sister Lila arrives in Fairvale and confronts Sam about the whereabouts of her sister. A private investigator named Arbogast approaches them and confirms that Marion is wanted for stealing the $40,000 from her employer. He eventually comes across the Bates Motel, where Norman's behavior arouses his suspicions. After hearing that Marion had met with Norman's mother, he asks to speak with her, but Norman refuses. Arbogast calls Lila and Sam, informing them of what he has discovered and saying he intends to speak with Norman's mother. He goes to the Bates' home in search of her; as he reaches the top of the stairs, Mrs. Bates suddenly appears from the bedroom and murders him. When Lila and Sam do not hear from Arbogast, they go to the local sheriff, who informs them that Mrs. Bates has been dead for ten years; she had killed herself and her lover. Concerned, Lila and Sam make their way to the motel. Norman takes his unwilling mother from her room, telling her he