It's Sunday, September 16, 2001. Franny and her husband have traded in their elegant Park Avenue co-op for a suite on board the Sonata, a once-glittering cruise ship with a complicated history now long past its prime. Though they're not 'cruise people,' Franny is determined to host the trip as planned because it's her mother's seventieth birthday, or chilsun, a major rite of passage celebrated by Korean families. But as her husband keeps pointing out, Franny and her mother aren't close, and it is surreal, even wrong, to be on a cruise as the death toll from the attacks on 9/11 continues to rise.