A 5-year jail sentence for a payroll robbery seems to have left Nick (Ronald Foster) looking as unreformed as when he went in. That's how the prison governor sees it. Ditto a detective watching closely, and the local press too. That's why Nick feels he's walking around with a target on his back, as the only survivor, the only one who knows where the loot is stashed.
Merry Anders plays the blonde cutesy-pops who has supposedly been waiting faithfully for Nick all along, but then it seems that 'faithful' isn't quite the word, and Nick switches his attention to the widow of one of the gang, for whose death he feels a bit of survivor guilt. (A flashback shows Nick persuading him that it'll be a pushover, and organising the concealment of the money in the chassis of the getaway car.)
Rather improbably, Nick is able to trace the car to a junkyard in the desert, its precious contents still undiscovered. But there we must leave the plot, so as not to spoil the fun - though you might reflect on why the wisecrack "Happiness won't buy money" should be uttered near the end.