chunk: Eugene discovers that Beverly has hidden a collection of serial killer memorabilia beneath their mattress. That evening at dinner, Chip comments that his friend Scotty thinks that she is the killer. Beverly immediately leaves in her car, prompting the family to rush to Scotty's house for fear that Beverly plans to kill him; however, Beverly has actually gone to kill Eugene's patient Ralph Sterner's wife, Betty, who called Eugene away to treat her husband's chronic toothache on a Saturday. She stabs Betty with scissors borrowed from Rosemary, and causes an air conditioner to fall on Ralph, who caught her killing his wife. Meanwhile, the rest of the family arrive at Scotty's house only to find him in his room masturbating to an old porn video.