Former math prodigy turned California card player Matt Mills, 26, is forced to take in his autistic younger brother, Sam, after their father commits suicide, leaving large debts at the hospital where Sam lives. Unable to care for Sam himself, Matt must return to Las Vegas, where he is forced to face his past, his own large debts, and his many enemies in order to win the $100,000 he needs to pay Sam's bills at the hospital and send him back.