When lone uranologist Dr. Steve Robert Mills (Dan Aykroyd) see the inordinately beautiful but improbably awkward Celeste (Kim Basinger) at a political party, the last thing he would believe is that she is a infinite foreigner on a missionary post to do whatever it take to salvage her major planet, but he learn the truth when, despite her doubtful purpose, he and Celeste make up one's mind to get married.