In The A.B.C. Murders the player will have to collect clues from the crime scene, check alibis and confront witnesses and suspects to catch the serial killer known only as A.B.C.

The story starts with Hercule Poirot receiving typed letters signed by A.B.C. giving the date and location of the next murder. A.B.C. is working his way through the alphabet, leaving an ABC railroad guide with each victim: Alice Ascher is a tobacco shop owner killed in her shop in Andover, Betty Barnard is a flirtatious waitress killed in Bexhill and Sir Carmichael Clarke is a wealthy man killed at home in Churston.

Why would A.B.C. write to Poirot instead of the Scotland Yard or any reputable newspaper? With Britain panicking, the fate of the nation is now in the player’s hands!