Players assume the roles of detectives and sit around a 4 person device with 4 phones. Players take turns calling in for clues which are delivered via their personal phone, and some are delivered via all points bulletins over a common speaker. Players record clues on a special playing sheet provided to track individual suspects in mysteries. Mysteries are kept on an "Atari-style" chip that is plugged into the machine. The game comes with one chip of mysteries, and purports to have additional chips available. Like clue with the possibility of individually delivered evidence.