Foreign spies steal the formula for a revolutionary explosive created by an Italian scientist and to decrypt the secret code they kidnap his secretary who knows about it.

Based on the comedy Il successo by Alfredo Testoni.

A young woman takes care of the just-born child of her late mother. Sacrificing her engagement and studies along the way.

Sole is the first film by the great Alessandro Blasetti and bears a complex relationship to the reclamation of the Pontine Marshes, a seminal event in Fascist political history.