In 1960s East Texas, Ed Edwards is in the used car business, but he's ready to get out of the game. When his boss at Smiling Dave's sends him to repossess a Cadillac, Ed finally gets the chance to escape his miserable life. The Cadillac in question was purchased by Frank Craig and his beautiful wife Nancy, owners of a pet cemetery. Fed up with her deadbeat husband and with unfulfilled desires of her own, Nancy suggests to Ed that they kill Frank and claim his insurance policy. It is a tantalizing offer—the woman, the car, the cash—but does he have what it takes to see the plan through?