U Turn (1997)

Bobby, a young punk drifter heading to Vegas to pay off his gambling debt before the Russian mafia kills him, is forced to stop due to a car breakdown in a Arizona town where the people are stranger than anyone he';s encountered. Bobby doesn';t have the money to get his car back, so when an aging man offers him money to kill his young wife Bobby seriously thinks about it. But later, the wife also hires Bobby to kill the husband...