Seven unsolved cases. One detective. You.
Printable cold case files for the kitchen table. Instant download. No app. No waiting.
Print. Solve. Reveal.
Choose a case
Browse the Vault by era, theme, or difficulty. Each case is a complete printable PDF — 25 to 35 pages of evidence.
Print and piece together
Print at home or take to a print shop. Spread the documents across your table. Read police reports, examine photographs, decode letters.
Name the killer
When you're ready, fill in the Submission Sheet — then score your investigation out of 100, on paper or online. The sealed solution waits at the back. Cases are designed to be solvable from the documents alone.
Inside every case file
20–30 evidence documents
Police reports, witness statements, autopsy notes.
Period newspaper clippings
Matching the era's typography and style.
Personal correspondence
Letters, telegrams, handwritten notes.
~9–13 period photographs
Mugshots, crime scenes, evidence shots.
4–6 suspects
Each with motives, alibis, and red herrings.
Detective's worksheet
Suspect matrix, timeline grid, and evidence index for your notes.
Three sealed hints
Printed upside-down. Peek at one only when you're stuck.
Scored investigations
Rate your detective work out of 100 — spot the framed suspects for bonus points. Check your answer online.
A definitive solution
Sealed at the back — read only when you're ready.
Look inside an actual case file
Real PDF pages from Case CC-0014 — The Apollo Engineer. This is the period-authentic stuff you actually print, lay out on the table, and use to name the killer. No spoilers below — the sealed solution stays in the file.
- Police report
- Autopsy findings
- Witness statements
- Personal correspondence
- Detective's notes
- Sealed solution
Names, places & events are fictional
7 cases on file
Unsolved files spanning Victorian London to today. Each one ships as a printable PDF — solve at the kitchen table.
The Apothecary's Ledger
Whitechapel, 1887. The fog hides secrets. The ledger reveals them.
A Death at Hartsmere
One shot fired. One gun cleaned. Three sets of prints. No confession.
Static on Channel Nine
Eight minutes of static. A newsroom full of suspects. One inconvenient truth.
The Sapphire of Saint-Cloud
Locked room. Watched door. Vanished sapphire. Impossible crime.
Neon Over Sunset Pier
An FBI agent dead beneath neon. Her badge, still warm.
The Soda Fountain Affair
A beloved soda jerk. A small town. One morning that changes everything.
Cold Boot
Late 1999. The internet is ascending. Murder waits in the code.
The trade, in plain language
| Feature | Cold Case Vault | Others in the market |
|---|---|---|
| Format | Instant PDF | Mailed boxes |
| Price per case | $19.99 | $26 — $35 |
| Solo-friendly | Sometimes | |
| No shipping wait | ||
| No subscription required | Often required | |
| Solution included | ||
| Sealed hints included | Rarely | |
| Online answer check & scoring | ||
| App required | Sometimes | |
| Era variety | 1888 to 2023 | Modern only |
| Print at home | n/a |
Buy one. Or subscribe.
Prices localised by region — same number, your currency. 14-day refund on single cases. Cancel subscription anytime.
Frequently asked
Seven unsolved cases. Pick one and start tonight.
Spread the documents across your kitchen table, read the witness statements, and name the killer.