Stupidity: Claire, in particular, and her husband are fascinated with Mrs. Mott and immediately accept her as a nanny, without looking into her background to validate her claims of previously being a nanny, or to learn more about her personal job history.
Stupidity: When Marlene deduces "Peyton" as being Dr. Mott's widow, she drives to the house to warn Claire. When she arrives, she foolishly decides to confront Mrs. Mott with this knowledge right to her face and demands to know where Claire is... which ends up with her being killed in Claire's place. Instead, she simply should have waited or looked for Claire, rather than confronting "Peyton."





Answer: Claire had called 911 but she couldn't talk. I'm sure their city had enhanced 911 coverage so they knew where the call was coming from and sent paramedics.
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