Grief in the Fourth Dimension

In life, high school classmates Caroline Davison and Kenny Zhou existed in separate universes?Caroline in one of softball practices and family dinners; Kenny in one of NASA photo books and late-night shifts at his parents' Chinese restaurant. But after their deaths, they find themselves thrown together as roommates in a mysterious white room?one that seems to exist outside of time and space, shows them their loved ones' lives on a large hi-def TV, and grants their wishes with a sardonic sense of humor.