Wound tight and cocky, Jimmy Starks (Guy Pearce) is a smooth-talking salesman certain he's on the verge of a big break. Even when his car stalls in the middle of nowhere, a roadside soothsayer (J.K. Simmons) assures him a windfall is on its way. But although Jimmy should be happy when his boss suddenly agrees to financially back his business venture, he starts to become paranoid instead.