Fregoli Syndrome is a rare psychological condition where a person believes that different people are actually a single person who changes appearance or disguises themselves. This can lead to confusion and distress, as the individual may feel constantly pursued or watched by this perceived individual. The syndrome is often associated with paranoid delusions and can occur in individuals with certain mental health disorders, such as schizophrenia. Treatment typically involves therapy and medication to address the underlying issues and help the person manage their symptoms effectively.