Remember (Film — Starring Christopher Plummer and Martin Landau)
Zev is an Auschwitz survivor currently living in a nursing home suffering the not-quite-so-early stages of dementia. He promised his wheelchair bound friend and co-resident that he would find the Nazi guard who murdered their families and kill him, but only after his dear wife Ruth has died. Ruth has just passed away and with a detailed letter in hand Zev sets off to exact revenge.
It is hard to watch someone with dementia struggle with his surroundings every time he awakens, either from sleep or a short nap, but the letter keeps him on task and his moments of lucidity are nice to see. The two survivors only have an assumed name to go by to track the killer, so Zev needs to visit a few men before finding the one he is looking for. His adventures along the way are poignant and shocking, but it is the ending that will hit you like a shot to the gut and keep this film in your memory long after you finish watching.