Extremities is an off-Broadway play by William Mastrosimone and directed by Robert Allan Ackerman.
A young woman, Marjorie, is attacked in her home by a would-be rapist, Raul, and manages to turn the tables on him, tying him up in her fireplace.
The three friends also turn on each other at various points in the play, due to Raul's knowledge of each through stalking them.
It wasn't uncommon to see the lead actress with bandaged and splinted fingers during the run of the play.
During one performance of the play, an obsessive fan of Farrah Fawcett was in the audience, and he disrupted the show by asking if she had received the pictures and letters he had mailed her.