Syphilis is a multisystem chronic infection caused by treponema pallidum. It can cause psychiatric disorders including depression, mania, psychosis, personality changes, delirium and dementia. With the introduction of penicillin into practice, the number of cases with syphilis decreased and its incidence increased with AIDS and HIV seropositivity. In this article, we present a case of neurosyphilis that manifested itself with neuropsychiatric symptoms.