Shetland: Series 9

Season overview

Role: Meticulous television and film archivist.
Task: Produce a JSON object for "Shetland" Season 9.
Constraints:
Use ONLY provided SYNOPSIS and SOURCES.
No invented/guessed titles, names, dates, etc.
If not in material, omit.
Original, neutral, encyclopedic prose.
No markdown, no asterisks, no headings, no bullet points (in the prose/summary).
Output: Valid JSON only.
JSON Keys:
overview: Factual 160-220 word summary of the season's narrative arc.
primer: Array of exactly 4 concise bullet points summarizing essential previous lore, character positions, and stakes.
TMDB Season Synopsis: "When a woman goes missing with her nine-year-old son, Calder and Tosh set out on a case that blurs the line between the personal and professional."
Source [1]: Created from novels by Ann Cleeves.
Source [3]: British crime drama produced by ITV Studios for BBC Scotland. First broadcast 10 March 2013. Based on novels by Ann Cleeves, adapted by David Kane.
Source [4]: Cast includes Alison O'Donnell, Steven Robertson, Lewis Howden, Douglas Henshall. Local police team investigates crimes.
Source [5]: Follows DI Jimmy Perez and his team. Investigates crime within a close-knit island community. Isolated and sometimes inhospitable environment.
Goal: 160-220 words.
Content: Season 9 involves a woman and her nine-year-old son going missing. Calder and Tosh investigate the case. The investigation blurs the line between personal and professional matters.
Problem: The provided synopsis is extremely short (33 words). To reach 160-220 words without inventing facts or guessing, I have a significant challenge.
Constraint Check: "You never invent or guess... If a detail is not in the provided material, you omit it rather than guess."
Conflict: The user asks for a 160-220 word summary, but the source material only provides one sentence of plot. If I follow the "no inventing" rule, I cannot reach the word count. If I follow the word count rule, I must invent.
Archivist Protocol: The instruction "You never invent or guess... If a detail is not in the provided material, you omit it rather than