The story takes place in a nursing home in Texas. Elvis (Bruce Campbell) and John (Ossie Davis) are two elderly people living there. In fact, Elvis always thinks that he is the famous rock star Elvis, while John firmly believes that he is the former famous President Kennedy of the United States. No one comes to expose the sad fantasy of the two elderly people. A terrible devil from ancient Egypt appears. Every night, he will select some poor people as targets and suck away their souls. Elvis and John decide to play the last light and heat and never let the devil continue to do evil. But soon, the two discovered that the devil was brewing a bigger conspiracy. It tried to use human souls to resurrect an ancient Egyptian army and then lead this army to conquer the human world.