Five-episode spine
01
Episode 1: The analyst receives a confession note in her own handwriting.
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Episode 2: A second note points to a suspect who died years earlier.
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Episode 3: Ink analysis reveals all notes were written in one room.
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Episode 4: The analyst remembers a case file she was ordered to forget.
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Episode 5: The final note proves the crime was staged to protect a child witness.
Why it works
Mystery templates work when each episode reveals one clue but deepens the central contradiction.
Visual style
Quiet noir mystery, paper textures, desk lamps, archive rooms, rain on windows, precise close-ups of handwriting details.