In 1919, four-year-old Rachel Rabinowitz is placed in the Hebrew Infant Home where Dr. Mildred Solomon is conducting medical research on the children. Dr. Solomon subjects Rachel to an experimental course of X-ray treatments that establish the doctor's reputation while risking the little girl's health. Now it's 1954, and Rachel is a nurse in the hospice wing of the Old Hebrews Home when elderly Dr. Solomon becomes her patient. Realizing the power she holds over the helpless doctor, Rachel embarks on a dangerous experiment of her own design. Before the night shift ends, Rachel will be forced to choose between forgiveness and revenge.