A dedicated nurse in a British hospital takes a nervous rookie under her wing. When the new nurse messes up and causes a patient's death, she protects her and loses her job. She eventually finds work at another bigger and more rundown hospital and there falls in love with a handsome young doctor. Trouble comes in the form of a lustful chief of staff who makes a play for the nurse. When she spurns him, he arranges to have her fired. Still determined to practice her profession the nurse and her fledgling assistant start their own service. Later a terrible epidemic strikes and she and her helper suddenly find themselves in demand at the hospital. There, the younger nurse redeems herself by making a great sacrifice and her mentor's own selfless devotion is finally recognized.