Behavioral Analysis · Cold-Case Review Unit

Reopen the File

Read the evidence. Build a theory. Find what the first investigators missed.

Welcome!

About Cold Case

Some cases were closed too quickly. A fall ruled accidental. A disappearance written off as voluntary. In Cold Case, you are a cold-case reviewer: your job is to read what the first investigators had — slowly, and skeptically — and ask whether the easy answer was ever the true one.

No chases. No timers you didn't ask for. Just you, the file, and one quiet contradiction. Open the reports, pin the evidence to the board, run the string between the pieces, and decide who is really telling the truth.

Cold Case is a work of fiction. Names, places, and events are invented and inspired by the kinds of mistakes that let staged-accident cases sit closed for years — never by any single real crime or person. There is nothing graphic here. The work is reading carefully and noticing what the first pass missed.

Inside the Case File

The Case File

Read the original record — police reports, medical examiner's notes, witness statements, ledgers, and alarm logs — grouped by type.

The Investigation Board

Pin evidence to the cork and run the string between cards to surface the contradictions the original team filed away.

Persons of Interest

Interview the suspects and watch what they volunteer — and where their account shifts under pressure.

Deduction Matrix

Establish means, motive, and opportunity for every suspect, and break each alibi that doesn't hold up.

Forensic Codex

Grow a personal codex of genuine investigative concepts as the file teaches them to you, one case at a time.

Challenge Modes

Lock the hints, run the clock, or go Cold Start — scaffolding withheld and the red herrings biting for real.

Solve Offline, Anytime.

Cold Case stores your progress locally on your device, so you can work a file completely offline. No ads interrupting your read, no reflex tests — just the case, and whether you caught it first.