Though the dialogue is at times implausible and Diana Scarwid's performance is not all that credible, "Extremities" is an interesting, disturbing portrayal of human violence that poses a question of where justification lies in revenge. The film adaptation, I think, is better than the stage play that inspired it. William Mastrosimone's script is most fitting as a movie, not as a theatrical piece. Where the movie works is in Farrah Fawcett's surprising performance. She is quite good, playing a victim with a quiet fear, and when she fights back and her would-be rapist becomes the victim, she lifts the movie up and adds a great intensity to the character of Marjorie. It is because of her that "Extremities" is better than it should be.