Dial M for Murder is a narrative adventure game. The world setting is based on the movie of the same name. The player will act as a detective writer, Mark Halliday, who meets an attractive married woman, Margot Wendice, at a train station and decides to flirt with her in order to gain more inspiration for his novel. Later, as Mark and Margot’s secret relationship has been exposed to more people, they decide to do a dangerous action. Now it’s the player’s choice to become a murderer.