Former government agent Mace Sowell (Patrick Stewart) is convinced that his former supervisor, who is making a bid for the United States presidency, is out to kill him. But his recent diagnoses of Alzheimer's leads his daughter (Kimberly Williams) to dismiss his paranoia. To defend himself from the threats on his life, imagined or not, Mace holes up in his home and fills it with deadly security precautions -- and his daughter hires a psychiatrist (Héctor Elizondo) to watch over him.