Deloris is taken to St. Katherine's Parish in a seedy, run-down neighborhood of San Francisco, where Souther suggests she take refuge in the attached convent. Both Deloris and the stoic Reverend Mother object, but are convinced by Souther and Monsignor O'Hara to go ahead with it. Deloris 'becomes' a nun â habit and all â under the hand of Reverend Mother, who gives her the religious name 'Sister Mary Clarence' to complete the disguise. Mary Clarence objects to following the strictures and simple life of the convent, but comes to befriend several of the nuns, including the forever jolly Sister Mary Patrick, quiet and meek Sister Mary Robert, and the elderly deadpan Sister Mary Lazarus. After sneaking into a nearby bar, Mary Clarence is chastised by Reverend Mother and put into the choir, which she has seen to be dreadful. The choir nuns, learning that Mary Clarence has a background in music, elect her to take over as choir director, which she accepts, and she rearranges them to