Now open

Solve it
with us.

A new mystery, mailed twice a month.

Start a case
Case 01 · 1923

The Windermere Affair

A stolen sapphire. A locked stateroom. One ocean crossing to catch a killer.

Read the file
01
Why we're different

Fair-play clued.
Every single time.

Every clue you need is really in there. No gimmicks, no unfair twists — just a story you can genuinely crack.

Case 02 · 1938

The Ashcombe Inheritance

Old money, older secrets, and a family that buried both.

Read the file
02
24 letters · 12 months

Real mail.
Real evidence.

Telegrams, torn ledgers, witness notes — things you actually hold, not just read.

From $11.95/mo

Three ways to open a case.

See pricing
Case 03 · 1954

The Hollow Creek Vanishing

Read the file
03
FAIR-PLAY CLUED 24 LETTERS A YEAR SOLVE IT YOURSELF ONE KILLER, EVERY TIME FAIR-PLAY CLUED 24 LETTERS A YEAR SOLVE IT YOURSELF ONE KILLER, EVERY TIME

Three moves. One case. Zero boring parts.

01

Pick a case

Three worlds, three killers, three completely different vibes. Start wherever grabs you first.

02

Get mail that slaps

Twice a month, real letters and real evidence show up — not a recap, the actual case file.

03

Call it before the reveal

Every clue you need is in there. Sharp readers crack it early. Everyone gets there eventually.

Three cases. Pick your poison.

Three ways to open a case.

Every tier is the same case: 24 letters over 12 months. The 24th is the solution.

Case File
$11.95/mo

Pay monthly. Cancel anytime.

  • 2 letters mailed monthly
  • Full evidence & clue inserts
  • Free U.S. shipping
  • No commitment
Start monthly
Master Detective
$164.95

Prepaid, and somewhere to keep it all.

  • Everything in Detective's Dossier
  • Case-file evidence tin
  • One payment, nothing to track
  • Free U.S. shipping
Go all in