In a New York City nursing home, Auschwitz concentration camp survivor Zev Guttman, an 89-year-old dementia patient, is sitting shiva for his wife, Ruth. Another elderly patient and fellow Auschwitz survivor, the incapacitated Max Rosenbaum, reminds Zev of what he promised to do when Ruth died. Max has continually reminded Zev that their families were murdered at the camp by the ''Blockführer'' Otto Wallisch, who was believed to have immigrated to North America under the false name Rudy Kurlander. The Simon Wiesenthal Center has located four Rudy Kurlanders, but there is no evidence to arrest any of them. Max reminds Zev that they are the only two who can still recognize Wallisch.