Lora Hart applies for a job as a nurse trainee but is rejected when the hospital's superintendent of nurses, Miss Dillon, learns she does not have a high school diploma . After a chance encounter with the hospital's chief of staff, Dr. Arthur Bell, Hart charms him and he tells Dillon to hire her. Lora and Miss Maloney, a fellow nurse, become roommates and best friends. After they violate curfew, Miss Dillon assigns them night duty in the emergency room. When Lora treats a bootlegger named Mortie for a gunshot wound, he persuades her to not report the wound to the police as required by law. He wants to know Lora better, but she resists him at first. After she passes her training, Lora is hired as a private nurse for two sick children, Desney and Nanny Ritchey. She moves into the Ritchey mansion, site of frequent parties. Mrs. Ritchey, the children's socialite mother, lives in an alcoholic stupor and is infatuated with her brutish chauffeur Nick. ...