"My name is Doctor Nolan. I am to be Esther's doctor"

Dr. Nolan is based on the psychiatrist Dr. Ruth Beuscher, who treated Sylvia Plath at McLean Hospital between September 1953 and January 1954.

Sylvia Plath also had psychotherapy with Dr. Beuscher during 1959 when she and her husband, Ted Hughes, were living in Boston.