The strange life of Ingrid von Oelhafen - Part 2

59-year-old Ingrid was in her office one day when her phone rang.  It was the German Red Cross. They asked if she was Ingrid von Oelhafen? Also known as Erika Matko? It was the call she’d waited for her whole life and it opened the door to a terrible secret from one of Nazi Germany’s sickest experiments. Who was she? And where was she from?