During the 1970s, when Elvis Presley (Bruce Campbell) grew tired of the demands of his fame, he switched places with an Elvis impersonator named Sebastian Haff (also played by Campbell). It was Haff who eventually died on the toilet in 1977, while the real Elvis lived in quiet, happy anonymity and made a living pretending to be himself. After a propane explosion destroyed documentation which was the only proof that he was actually Elvis Presley, he was rendered unable to return to his old lifestyle. A hip injury during a performance causes him to get an infection and slip into a coma. Twenty years later, in an East Texas nursing home as the movie opens, he is contemplating his age, frailty, loss of dignity, impotence, and "A growth on [his] pecker". Elvis's only friend is a black man named Jack (Ossie Davis) who insists he is President John F. Kennedy, claiming to have been dyed black after the assassination attempt, and abandoned in a nursing home. The truth behind his identity remains unclear, but Elvis does spot a mysterious scar on the back of Jack's head. It could be from the head wound seen in the Zapruder film, but then it might not be. Most of the film's plot is driven by Elvis' internal monologue, as he reminisces about his life and ponders his condition. Eventually, Elvis and Jack face off against a re-animated ancient Egyptian mummy that was stolen during a U.S. museum tour and then lost during a severe storm in East Texas when the bus being driven by the thieves veers off the road and into a river near the nursing home. The mummy strangely takes on the garb of a cowboy and is dubbed Bubba Ho-tep by Elvis who is given a telepathic flashback of the mummy's life and death when he looks into its eyes following its murder of an elderly woman at the home. The slow, plodding mummy is a real and credible threat, as instead of going against young adults who could potentially outrun it, the mummy gives chase to the elderly heroes who lack mobility and need a motorized wheelchair and a walker to get around the grounds. After hatching an elaborate plan Elvis and Jack manage to destroy the mummy, and the trapped souls of their dead friends appear to be released to their final resting place. In the process of defeating the mummy, Elvis and Jack are themselves mortally wounded. Since much of the film establishes the protagonists as pathetic and even insane, their deaths are portrayed as especially heroic and honorable. As he lies near the river dying, Elvis gets confirmation that his soul is prepared to move on as he looks up into the stars and sees the message "ALL IS WELL" spelled out in Egyptian hieroglyphs; his final words are classic Elvis: "thank you, thank you very much." With that, he dies.