Factual error: In the beginning the guy shooting pool gives a CD to Richard Gere, he says that the song they were listening to is the fourth song when in fact it's the first song on the album.
Factual error: Though the movie is set in Chicago, Laura Linney refers to the prosecutor's office she works for as the DA's office. There is no DA's office in Chicago. In Chicago, this office is called the State's Attorney's Office.
Answer: Later in the film it's said B32 is a catalog code for the book "The Scarlet Letter", page 156. On that page was an underlined passage "No man, for any considerable period, can wear one face to himself and another to the multitude without finally getting bewildered as to which may be the true..."
Bishop73