After the death of the paranoid emperor Tiberius, Caligula, his heir, seizes power and plunges the empire into a bloody spiral of madness and depravity.
A young Roman receives from his mother, who is dying, a shocking news: he is the natural son of Adolf Hitler, conceived during a fling between the Führer and the lady during the visit that the German dictator made to Italy in 1938.
The young Vittorio Pieroni throws himself from a railway overpass when a train is passing by; escaped suicide and rescued by an ambulance, remembers the circumstances that led him to commit that gesture
