While liberties were taken with the original story by Anne Perry, the Cater Street Hangman was very true to the overall feeling of the novel. Eoin McCarthy did an outstanding job as Inspector Pitt - very believable. Keeley Hawes also did wonderful work as the much-oppressed, liberal-minded woman of Victorian times. I wasn't interested in Anne Perry's work until after I had watched this movie, and I hope to see more adaptations of this series in the near future.