KILLER DOSSIER
MURDER MYSTERY LOGIC PUZZLES

NEW CITY.
NEW CASE.
ONE KILLER.

Every case gives you the names, places and moments. Your job is to eliminate the impossible and find the one combination that survives.

OPEN THE CASE FILES
KILLER DOSSIER SERIES

Case Files

Choose your investigation. Each book has its own case portal, answer checker and clues.

KILLER London paperback
KD-LDN-001 · CASE OPEN

KILLER LONDON

6,500 suspects · 1,437 locations · 1,200 possible times · 29 clues

SOLVE THE LONDON CASE
KILLER New York paperback
KD-NYC-002 · CASE OPEN

KILLER NEW YORK

7,163 suspects · 1,374 locations · 1,534 possible times · 31 clues

SOLVE THE NEW YORK CASE
KILLER Paris paperback
KD-PAR-003 · CASE OPEN

KILLER PARIS

7,489 suspects · 1,509 locations · 1,617 possible times · 29 clues · one weapon

SOLVE THE PARIS CASE
THE INVESTIGATION CONTINUES

Explore the series

Three cities. Three murder mysteries. Can you solve them all?

THE FILES WILL GROW

London. New York. Paris. Then the world.

As new KILLER DOSSIER investigations open, they simply join the case files.

PARIS · TOKYO · LOS ANGELES · AMSTERDAM · BERLIN · MADRID · ROME · TORONTO · MIAMI · ISTANBUL
JOIN THE CASE FILE

Be first to hear when the next case opens.

New cities. New investigations. Occasional launch alerts and exclusive mini-case files.