The story uses a non-linear narrative as a dramatic device, as all the characters within it, including the Doctor and Nyssa, experience events in chronological order.
Writer/director Nicholas Briggs wrote the play in thematic order. The theme of the play being moral ambiguity and the difficulties that occur when the whole picture isn't clear. He recorded it in chronological order so that all the actors experienced the story as their characters would have.
The development of the character of Lady Forleon is outlined in the CD's liner notes. In an earlier draft of the script, the character was originally to be a female cosmetic surgeon called Sabrique. This was later changed to become a male industrialist who despite appearing to be a philanthropist was in fact colluding with the criminal underworld. This was then developed into the character of Lady Foreleon as seen in the finished play.
The CD's liner notes also mention an unused subplot concerning Nyssa's attempts to escape custody through befriending a quirky female solicitor, a character completely absent from the finished play.
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