Mary Fanshawe (Fay Wray) is a dedicated, professional supervising nurse in an urban hospital.

During a crucial operation that Selby had insisted on performing himself, he finds himself unable to continue and hands the procedure to Barclay, who succeeds with a radically new technique, calmly observed by Fanshawe, who is acting as head nurse.

Later, when a patient nearly commits suicide because of a mistake made by Andros, Barclay discovers the nurse with Preston, who was supposed to be on rounds in the ward, together on the hospital's rooftop.

Barclay attempts to cover for his fellow doctor, but when Andros learns she is to be fired, she threatens to expose the deceit.

In the end, both Andros and Preston are forced to leave, with Fanshawe and Barclay now ready to collaborate both professionally and personally.