The game package includes four scripted murder mystery scenarios, all set in England between 1900 and 1920. Scenario titles are "A Death in Devon", "Death of a Train Spotter", "Return of the Flower Hunter", and "The American Cousin".

Three of the cases have speaking parts for 7 or 8 characters, and allow an additional person to act as the narrator. The design is typical of this type of game, with plenty of opportunities for discussion, speculation and dramatic accusations.

The second case (Death of a Train Spotter) has no speaking parts, and is therefore playable by any number of guests. It is written as a meeting of the "Greater London Detective Club", during which the natural progress of a murder investigation is reconstructed.