A 60-year-old man is brought to a psychiatrist with a 10-year history, that he suspects his neighbors and he feels that whenever he passes by they sneeze and plan against behind his back. He feels that his wife has been replaced by a double and calls police for help. He is quite well-groomed ale, occasionally consumes alcohol, likely diagnosis is:
Paranoid personality Paranoid schizophrenia Alcohol withdrawal Conversion disorder