That evening, Mary and Norman find a bloody rag stuffed in the toilet. Norman is horrified, believing he has committed another murder, but Mary insists he is innocent. Mary goes down to check the motel. In the parlor she is surprised by Lila, her mother; Lila and Mary have in fact been making the phone calls and notes, even posing at the window dressed as Norman's mother. Mary altered his mother's bedroom and locked Norman in the attic so she could change it back. All of this was an attempt to drive Norman insane again and have him recommitted. However, Mary's growing friendship with Norman has convinced her he is no longer capable of killing. She suspects someone else is in the house, pointing out that Norman was locked in the attic at the time of the boy's death.