A Jewish barber who resembles the tyrannical dictator Adenoid Hynkel finds himself swept up in a series of unexpected and dangerous events in a nation on the brink of war. After valiantly serving in World War I, the barber suffers amnesia and spends years in a military hospital. Upon his discharge, he returns to his old life, unaware that the political landscape has drastically changed. The small barbershop in the ghetto where he once worked is now under the oppressive rule of Hynkel's regime, which targets and persecutes the Jewish community. Despite the dangers, the barber tries to resume his work while standing up to the brutality faced by his neighbors, aided by the spirited Hannah who becomes an important ally.

Meanwhile, Adenoid Hynkel, the bombastic and ruthless dictator of Tomainia, is obsessed with expanding his power and influence. His tyranny is marked by violent propaganda, military aggression, and an unyielding desire to dominate the world stage alongside a fellow dictator in Bacteria. As Hynkel's plans grow more grandiose and dangerous, the barber inadvertently finds himself embroiled in a plot that could alter the fate of his country. In a world overshadowed by chaos and terror, the striking resemblance between the unassuming barber and the formidable dictator sets the stage for a dramatic and unexpected confrontation.