Prisoner of Her Past tells the story of Sonia Reich, a 79-year old woman suffering from late onset PTSD who begins reliving her traumatic experiences during the Holocaust. Her son Howard travels to learn about her past, discovering she was sent to a Nazi labor camp as a child. Scenes with Sonia reenacting memories and Howard learning her history from others who knew her illustrate how the Holocaust continued affecting victims. The film aims to show trauma's lasting impacts and how it shapes family relationships, bringing attention to disorders survivors still face decades later.