The player explores a house from a text-based perspective, moving between rooms and interacting with people or objects through typed commands. The main objective is to identify the murderer and gather enough evidence to make a successful accusation.

Progress depends on questioning suspects, comparing statements, searching for clues, and managing the limited time available. The investigation is organized as a sequence of locations and discoveries rather than conventional action stages. Careful notes are important because clues and alibis must be reconciled before the final deduction.

Map the house early and record every room, clue, and statement. Revisit suspects after discovering new evidence, since an apparently harmless contradiction may become important later.

Avoid spending time on random movement. Compare alibis carefully, preserve a written suspect list, and make the accusation only when the evidence forms a consistent explanation.