Tom Stoppard's comedy has actors playing actors who, in turn are playing characters: this somewhat ridiculous set up is a crime mystery, mimicking Agatha Christie. As the play develops, two critics who have come to comment on the play, get drawn in and both men find themselves embroiled in events on stage, as they trade places with the mysterious Simon and the even more mysterious, not to say eccentric, Inspector Hound if that indeed is who he is!