Senor Wagner, an elderly man living in Argentina, receives a mysterious package containing an antique mirror. Strange voices from the mirror call out to "Doctor Rascher," seeming to pull Senor Wagner into his past. Flashbacks reveal Senor Wagner was actually Doctor Hans Wilhelm Rascher, a Nazi physician who conducted deadly experiments on concentration camp prisoners. The ghosts of his victims now haunt Rascher through the mirror, unable to let him forget his horrific crimes.