4-7-14-17-21-25. Those numbers, printed on a slim paper ticket, are about to change the lives of two couples, lovers past and present, in Houston. When Nina Lawson wins $16 million in the Texas Lotto, the real estate executive and her fiance, personal trainer Rick Henderson, ecstatically begin planning their future -- from paying off their credit card debt, to setting their wedding date, to a spontaneous, spare-no-expense island getaway.

But while counting her millions, Nina didn't count on one other astounding twist of fate: her ex-husband, Todd Lawson, isn't her ex anything -- since the paperwork for their divorce was never officially filed. Now he's shown up with his money-hungry girlfriend, Pam, to claim half of Nina's winnings. Add to this the relatives coming out of the woodwork to seek a payday for themselves, and Nina must ask herself if scoring a fortune in cash comes with too high a price tag. With a little bit of luck, Nina will discern the real wealth in her heart, not just her bank account -- or risk losing everything -- to find out what matters the most.