A working desk for viewers who want to follow every case mechanism, James clue, musical idea, location and production detail—without confusing fan theory with programme fact.
Choose an episode, work through six observation fields and keep a private note in this browser. Nothing is uploaded.
A superfan rewatch is not twelve separate murders. These are the continuing lanes worth checking every time.
New fact, supported implication, contradiction—or deliberate silence?
Open Sources →IdentityTrack who sees John, who still sees James and who notices the difference.
Open people map →MethodSequence, geometry, language, testimony or a model hiding in plain sight.
Open puzzle room →MovementRoutes, entrances, blind spots and the difference between fiction and filming.
Open atlas →MotifFragments, returns and musical ideas that shadow John’s interior logic.
Open music desk →A visual rewatch key for patterns that gain meaning through recurrence.
Six original illustrations explore identity, evidence, puzzles, place and music without borrowing programme stills or actor likenesses.
All six images are original AI-assisted fan illustrations commissioned for this unofficial archive. They are not programme stills, props or official promotional art.
Spoiler-light briefs, puzzle lenses, James connections and solution boundaries for all twelve cases.
02Separate what the programme confirms from reasonable inference, contradiction and fan theory.
03Follow the missing-twin mystery in episode order without mixing weekly-case evidence into the long case.
04Track who knows John’s identity, who thinks he is James and how the investigative circle changes.
05Connect fictional Cambridge geography with verified filming locations and episode appearances.
06Hear the official theme, trace the Beethoven works behind the score and open the soundtrack releases.
The physical and logical sequence that makes the crime possible.
First appearance, later interpretation and whether the clue was fairly shown.
Where each relevant person could be, with uncertainty preserved.
New fact, contradiction, implication or deliberate lack of progress.
Writer, director, guest cast, filming location and verified source.
Original-score title, scene use and Beethoven influence where documented.
This is the useful nerd view: group episodes by reasoning pressure, then compare how the programme changes the method.
Method labels describe the archive’s spoiler-light comparison lens; they are not official episode categories.
No puffery, no “ultimate guide” nonsense: these are the measurable working parts.
Copyright-safe rule: summarise and cite interviews or episodes; do not reproduce scripts, footage, music files or long quotations.
Compare resemblance, behaviour, knowledge and recognition.
Open the identity guide →Track notebooks, grids, boards, thresholds, clocks and cameras.
Open the object register →Connect writing, direction, design, performance, editing and music.
Open the craft file →Give fan ideas a safe home with evidence for and against.
Open the theory board →