Dossier No. 0
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Training file
Closing Time
A short training file: one bookshop, one evening, one verdict nobody questioned.
- Setting
- Altweiler, Alsace, France
- Dates
- Set 2004, Reopened 2026
- Players
- 1–6
- Playing time
- 20–30 minutes
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Four cases open
Somebody missed something.
Every case here is a free murder mystery to solve online: a box of evidence with police reports, statements, letters, receipts, maps and the loose end the first investigation left. Read it closely, open the sealed files, then name the killer and prove it.
Play alone or with up to five friends in a shared room. No sign-up form: pick a nickname and start reading. Add an email later only if you want to sign in on other devices.
The case library
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Dossier No. 1
Case file Difficulty: Hard
The Shard Shore
A herring night, a bank of broken glass, and a time card stamped long after she was last seen.
- Setting
- Skärvhult, Kronoberg County, Sweden
- Dates
- Set 1993, Reopened 2026
- Players
- 1–6
- Playing time
- 2–3 hours
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Dossier No. 2
Case file Difficulty: Medium
Honest Weight
On the last night of pressing, the miller went down to his boat. Or so the file said.
- Setting
- Karataşlı Cove, near Ayvalık, Türkiye
- Dates
- Set 2009, Reopened 2026
- Players
- 1–6
- Playing time
- 75–105 minutes
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Dossier No. 3
Case file Difficulty: Easy
The Wigmaker’s Attic
Two days before the van was due for his workshop, someone turned the attic upside down.
- Setting
- Plaza de Santa Ana, Madrid, Spain
- Dates
- Set 2002, Reopened 2026
- Players
- 1–6
- Playing time
- 40–60 minutes
How it works
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Step 1
Read the closed file
File 1 is the case as it was left when the investigation stopped. Every exhibit is a real-looking document. Small details carry weight, so read all of it.
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Step 2
Break the seals
Files 2 and 3 open only when you answer a gate question from the evidence. A wrong answer costs points. If you are stuck, Sherlock Holmes offers hints, each with its price shown first.
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Step 3
File your verdict
One vote in five parts: who did it, how, why, the period during which the guilty person’s own account is false, and the two exhibits that prove it. Then you see the full solution, your rank and how everyone else voted.
Why it is free, and why it is fair
Free. Tifa writes the cases and publishes them without a paywall. Nothing is for sale inside a case, and the site carries no advertising and no analytics trackers. The only cookie keeps you signed in to your own progress, and you can delete your data at any time.
Fair. Each case is written so that the evidence alone is enough to reach the answer, without outside knowledge or a lucky guess. The solution is fixed before you open the file and kept on the server, never hidden in the page. Hints show their price first, and the same rules apply to every player.