A game where the computer knows all the facts (it plays the role of all 20 "characters"). The computer randomly selects 1 of 20 characters to be murdered and sets up the crime. Then, it's your job as a detective to interrogate the remaining 19 suspects to figure out which one of them did it.
Each player takes a 'Case Fact Sheet' where they record all of the information they gather about the crime:
- The murderer's sex.
- The murderer's location.
- The murder weapon's caliber.
- The murder's fingerprint information.
On each turn a player chooses a suspect, and any public information the suspect provides is shared with all the players. Next, the player may (depending on the difficulty setting) ask one to three questions of the suspect, and this private information the suspect provides is kept secret.
The first player to successfully identify the guilty suspect wins the game.