Based on characters created by Agatha Christie.

"Hercule Poirot's quiet supper in a London coffeehouse is interrupted when a young woman confides to him that she is about to be murdered. She is terrified--but begs Poirot not to find and punish her killer. Once she is dead, she insists, justice will be done. Later that night, Poirot learns that three guests at a fashionable London hotel have been murdered, and a monogrammed cufflink has been place in each one's mouth. Could there be a connection with the frightened woman? While Poirot struggles to put together the bizarre pieces of the puzzle, the murderer prepares another hotel bedroom for a fourth victim..."--Container.