double delusion

What Is Fregoli Delusion? Fregoli delusion is the mistaken belief that some person currently present in the deluded person’s environment (typically a stranger) is a familiar person in disguise. Who discovered Fregoli syndrome? Fregoli syndrome was first described in 1933 [6], a decade after Capgras and Reboul-Lachaux described the first case of look-alike impostors [7,