PERDIFY Scenarios

AI interrogation mystery cases

Each case is a spoiler-free doorway into a closed circle: suspects with motives, locations with access rules, and stories that start to split when you press them.

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Full Case Multi-session

Manhattan, 1977

Blackout at the Beaumont

Seven suspects. Twelve floors. Total darkness.

A grand Manhattan hotel goes dark, a judge dies between floors, and every alibi depends on who could move through the blackout.

Suspects: 7
Locations: 16
Region: Manhattan, New York City

historical
blackout
vertical alibis
locked location

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Full Case Multi-session

Prague, New Year's 1990

Nádraží

The ghosts of the old regime die hard

On the first night of a new era, a blizzard seals Prague's main station with a dead secret policeman and a briefcase of names.

Suspects: 9
Locations: 9
Region: Czechoslovakia

Prague
political thriller
blizzard
sealed station

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Quick Case Single sitting

Vienna to Zagreb

Last Train to Zagreb

A locked berth, an empty case, and a storm with no exits

An overnight sleeper pushes through a winter storm with a locked berth, an empty case, and a corridor full of tight alibis.

Suspects: 4
Locations: 6

train mystery
locked berth
winter storm
quick case

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Quick Case Single sitting

Rural church, Christmas Eve

Midnight Mass

The confession ended. The recorder kept running.

Snow seals a village church after the priest is killed between the Vigil office and Midnight Mass.

Suspects: 4
Locations: 5

church
snowed in
confession
quick case

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Quick Case Single sitting

Antarctic research station

Radio Silence

The aurora took the radios. The floor kept listening.

An Antarctic station loses every signal under an aurora, then a commander is found dead while the floor keeps the only reliable record.

Suspects: 4
Locations: 6

Antarctic
sensor puzzle
isolation
quick case

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Full Case Multi-session

Rocky Mountains, 2022

The Retreat

Silence is deadly in the high mountains

A silent mountain resort promises renewal, then a guest dies in a treatment room designed to make death impossible.

Suspects: 9
Locations: 9
Region: Rocky Mountains

wellness resort
impossible death
mountain isolation
modern mystery

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Last Stop at Coyote Wells case cover art

Full Case Multi-session

Arizona Territory, 1882

Last Stop at Coyote Wells

Eight strangers. One killer. No way out.

A sandstorm traps travelers at a frontier waystation where one locked room, one dead land agent, and too many grudges wait out the weather.

Suspects: 8
Locations: 13
Region: Arizona Territory

western
sandstorm
locked room
frontier

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Quick Case Single sitting

Mediterranean yacht

Yacht at Midnight

A poisoned nightcap in still water

Still water, a final nightcap, and a luxury yacht where everyone close enough to help is close enough to lie.

Suspects: 4
Locations: 4

yacht
poison
tight cast
quick case

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Full Case Multi-session

England, 1891

The Dinner Party

A deadly evening at Ashworth Manor

A country-house dinner curdles into suspicion after the host is found dead before his promised announcement.

Suspects: 7
Locations: 8
Region: England

manor house
poison
dinner party
classic mystery

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Quick Case Single sitting

Chicago planetarium, 1998

Dead Star

The dome went dark. The machine remembered.

A planetarium preview turns fatal when an old star projector falls, leaving lobby video, cue logs, and a hidden service route to align.

Suspects: 4
Locations: 7
Region: Chicago, Illinois

planetarium
locked venue
machine clues
quick case

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Quick Case Single sitting

Hospital MRI suite, 2026

Sublevel B: Hospital MRI Suite

The magnet was always armed.

A steel oxygen cylinder turns lethal inside a sealed MRI suite, where badge swipes and barcode custody decide who armed the magnet.

Suspects: 5
Locations: 8
Region: New York City

hospital
MRI safety
access logs
quick case

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