Following WWII, we’re introduced to "Stingo" (Peter MacNicol), who isn't particularly taken with his new neighbors upstairs. “Nathan” (Kevin Kline) comes across as a loud and somewhat rough man toward his girlfriend, “Sophie” (Meryl Streep). Fortunately, the next morning things seem calmer when they appear at his window to invite him on a picnic by the sea. He’s an aspiring writer, and he quickly notices Nathan's ins…