S7·E3 The Girl Next Door

Episode recap

Task: Write a 280-380 word episode recap for Supernatural S7E3 (The Girl Next Door).
Constraints:
Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, counts, awards, ratings, numbers, or plot points.
Omit details not in the material.
Style: Original, neutral, encyclopedic prose, plain text.
No markdown, no asterisks, no headings, no bullet points.
Word count: 280-380 words.
Synopsis: Dean is furious because Sam disappears to follow a lead on a case with clues identical to a case Sam solved as a kid. The demon is Amy. Amy kills low-life thugs and eats their brains for dinner. This is the same demon Sam found as a kid.
Sources:
Series title: Supernatural.
Characters: Sam Winchester (Jared Padalecki), Dean Winchester (Jensen Ackles).
Premise: Brothers hunt demons, monsters, and other supernatural beings.
History: Lost mother to a mysterious and demonic supernatural force; father raised them to be soldiers.
Airing info: First broadcast on The WB, later The CW. 15 seasons. Started Sept 13, 2005.
The synopsis is very short.
The sources provide context about the show but not much about this specific episode.
Problem: The word count requirement is 280-380 words. The provided synopsis is only about 45 words.
Constraint Check: "If the synopsis is sparse, stay concise rather than guessing." vs "Write a grounded 280-380 word episode recap".
Conflict Resolution: As an archivist, I cannot invent facts to meet a word count. If I only have 45 words of plot, I cannot write 280 words without violating the "never invent or guess" rule. However, I can expand on the context provided in the sources (the series premise, the actors, the characters) to provide a professional encyclopedic entry for the episode within the context of the series.
Drafting Content:
Identify the episode: Supernatural Season 7, Episode 3, titled "The Girl Next Door".
Context: The series follows brothers Sam Winchester, played by Jared Padalecki, and Dean Winchester, played by Jensen Ackles. They hunt demons, monsters, and other supernatural beings.
Episode Plot: Dean becomes furious when Sam disappears to pursue a lead. The lead involves clues that are identical to a case Sam solved during his childhood.
The antagonist: The demon is identified as Amy.
Amy'