Open the case file
An interactive murder mystery
The case
is in your hands.
Question suspects. Catch contradictions. Build the case that exposes the truth—one message at a time.
Download on the App Store
InterrogateAsk any question. Follow every lead.
Record evidenceSave the details that change the case.
Make the callName the suspect and submit your theory.
Watch the investigation
A case begins with one question.
See the case file, interrogation, and final judgment in motion. Each preview is under 30 seconds.
Question the suspects
Submit your judgment
A mystery that responds
Not a script.
A real investigation.
Each case begins with a victim, a location, and a room full of people with something to hide. You decide who to question, what to press on, and which statements deserve a closer look.
A classic whodunit, made personal
Everyone has a story.
One of them has a secret.
Crime Story is made for players who love the tension of a classic Agatha Christie–inspired mystery: a closed circle of suspects, polished manners, old resentments, impossible alibis, and one detail that does not belong.
A quiet town can hide a stolen inheritance. A respected doctor can be guarding a devastating lie. A nervous answer in the middle of an ordinary conversation can point to the one person who had the motive, the means, and the opportunity. There is no single path through the case—you earn the solution by noticing what others miss.
01
Open the file
Meet the victim, review the opening hook, and scan the suspect directory for relationships and motives.
02
Work the leads
Interrogate suspects in a familiar chat interface. A vague answer today may become a contradiction tomorrow.
03
Close the case
Choose your accused suspect, motive, and method. The jury evaluates the theory you actually built.
Interrogate the suspects
A conversation can be evidence.
Push past first answers, return to details, and let the case evolve through the questions you choose to ask.
AlibisRelationshipsContradictionsHidden motives
Learn while you investigate
A sharper case. Better English.
Every interrogation is a chance to practise clear English. Write the questions you want to ask, naturally, as a detective would.
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An investigation that helps your writing
Crime Story can correct spelling and grammar in your English questions, helping you communicate more clearly while staying inside the mystery. It is a gentle, practical way to build confidence with everyday written English—not a lesson that interrupts the game.
Ask a suspect about an alibi. Rephrase a difficult question. Notice how your sentence improves, then keep investigating. The story gives every question a real purpose.
The final judgment
Make the accusation.
Your notes become a formal case submission. Name who you believe did it, why, and how—then see how close your reasoning came to the truth.
Start your investigation
Inside the case file
Every screen moves the investigation forward.
A spoiler-free look at the case directory, interrogation, evidence, locations, and final judgment.
Case support
Questions from the field.
Open the Story tab and select Generate a case. This replaces the current case with a new investigation and suspect directory.
Open a suspect file from Chat, then start questioning them. Save suspicious statements and useful details as notes while you investigate.
In Judgment, choose the accused suspect and write your proposed motive, method, and reasoning. The panel jury evaluates that submitted case and gives you a result.
Yes. An internet connection is required to generate cases and receive character responses.
Open Settings in the app and choose Restore Purchases. Any valid previous purchases will be restored automatically.
Yes. The app can correct spelling and grammar in English questions as you investigate. It is designed to help you express your ideas more clearly while you play.
Need help with your case?
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