The reappearance of “Ellen” (Doris Day) after being missing for years—she’d even been declared legally dead—is startling when she returns to society, courtesy of the US Navy, and shows up at her mother-in-law's home. "Grace" (Thelma Ritter) is understandably taken aback, though she seems to have a convenient rug to soften her falls as she processes the news that her son “Nick” (James Garner) isn’t destined for a soli…