I read the book 20 years ago, and from which this film was adapted. There are so many main components from the book, which have been omitted from the film, that it is unrecognisable as the same story. Magenta House didn't feature at all, and this organisation is integral to the entire journey of Stephanie/Petra. Alas, and very disappointingly, this film does not do justice to Mark Burnell's thriller. Read the book, as it's thoroughly worth it!