Aspiring author Stingo (Peter MacNicol) shares a Brooklyn boarding house with winsome Polish émigré Sophie (Meryl Streep) and her mercurial lover, Nathan (Kevin Kline) -- a union unsettled by Nathan's violent behavior and Sophie's disturbing recollections of her wartime experience. Stingo discovers that Sophie is a fraud, though, when her accounts of her stint at a Nazi concentration camp unravel, laying bare the real source of her torment.
I'm not paying to much attention to this movie so if someone can just tell me what was "Sophie's choice" or the main point of this story I'll appreciate it very much :)