On his way to Las Vegas to pay back some bookies who have already taken two of his fingers for late payment, small-time hustler Bobby Cooper (Sean Penn) thinks he'll soon be in the clear. Unfortunately, Bobby's car breaks down, which leads him into the small and very strange town of Superior, Arizona. With no money, Bobby finds himself trapped there with no way to get his car fixed. When Bobby meets up with the beautiful Grace McKenna (Jennifer Lopez) and her powerful husband Jake (Nick Nolte), the goal of fleeing town vanishes in the need of simply surviving. Jake offers Bobby money to kill Grace. Then Grace asks Bobby to get rid of Jake. Both offer him a way out-kill one for the other. The stakes are high as Bobby is locked into a deadly game of lust, madness and money.