S6·E14 Mannequin 3: The Reckoning

Episode recap

Task: Write a 280-380 word episode recap for Supernatural S6E14 (Mannequin 3: The Reckoning).
Constraints:
Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, counts, awards, ratings, etc.
No dialogue, scene order, or plot events not in the text.
Style: Original, neutral, encyclopedic prose, plain text.
No markdown, no asterisks, no headings, no bullet points.
Word count target: 280-380 words.
Synopsis: Ben calls Dean and tells him Lisa is in trouble. Dean leaves Sam to investigate a case alone and rushes home to rescue Lisa, but he is not prepared for what meets him at the door. Meanwhile, Sam discovers the men that were murdered were all a part of a cruel practical joke played on a female co-worker who went missing.
Sources:
[1] Series info: Supernatural (2005), TV-14, Drama, Mystery, Sci-Fi & Fantasy.
[2] Series info: Created by Eric Kripke. Aired on The WB and The CW. 15 seasons. September 13, 2005, to November 19, 2020. Sam (Jared Padalecki) and Dean (Jensen Ackles) hunt demons.
[3, 4, 5] Series info: Sam and Dean Winchester lost their mother to a demonic force. Father raised them to be soldiers to kill paranormal evil.
Episode Specifics:
Characters: Dean, Sam, Ben, Lisa.
Plot: Ben calls Dean about Lisa being in trouble. Dean leaves Sam to investigate a case alone. Dean rushes home to rescue Lisa but encounters something unexpected at the door. Sam investigates murders. The murdered men were involved in a cruel practical joke on a missing female co-worker.
Challenge: The provided synopsis is very short. To reach the 280-380 word count requirement without inventing facts or guessing plot points is extremely difficult. I must expand on the context provided by the sources (series background) to reach the length while remaining strictly factual.
Drafting Strategy:
1. Introduce the series context (created by Eric Kripke, stars Jared Padalecki and Jensen Ackles, premise of Sam and Dean Winchester hunting paranormal evil).
2. Transition to the specific episode events.
3. Detail the plot points from the synopsis: Ben's call, Dean's departure from Sam, the investigation, the connection to the missing female co-worker and the practical joke.
Drafting Content:
The television series Supernatural, created