You play the case. Here are the rules.

You get the evidence in the order the detectives got it

Every case is built from the real record and rolled out in sequence. What the investigators had on day one is what you have on day one. When they got a lab result, you get it at the same point in the story. There is no piece of evidence that exists only to be sprung on you later, and nothing that mattered is left out to keep you guessing.

That is the fairness rule the whole show runs on. If you can catch it, you were given what you needed to catch it.

You lock one verdict per layer, and a lock stands

A case opens in layers. When a layer closes you put your read on the record and lock it. One lock per layer, and locking is final: it does not un-lock, it cannot be edited after the fact, and you cannot go back and improve it once you have heard more. That is what makes your score mean something and what makes the board worth reading.

Take your time before you lock. Nothing rushes you, and you can work the case board with everyone else on it for as long as you want.

The reveal is the answer, whichever way the answer goes

When the reveal comes, it gives you the answer as the record actually holds it. That is worth saying plainly, because "the answer" and "the solution" are not the same word. An answer can be a name and a conviction. It can also be an account of how a case was worked, what it turned on, and where it stands now. You are told what is true, not what would land better.

So the show does not tell you in advance what shape a reveal will take, and there is no list anywhere on this site that would let you check ahead. That is deliberate. Knowing the shape of the answer before you start would let you play the show instead of playing the case, and the case is the entire point.

What is promised is this: you are never left without an answer, and the answer you get is honest.

You play with everybody else on the case

Each case has a board. You can post your read, follow somebody else working a thread you missed, and see how the room moved before the reveal landed. Posts that could identify a living person who has not been named on air are held for review before they publish, every time, on every case. That is a real gate and it is not negotiable.

What it costs and who can join

Playing is free. You need an account so your locks and your progress survive closing the browser, and you must be at least 16 to join. You can export or delete everything you have contributed at any time from your profile.