Michele Casali is a middle-class professor in Fascist Italy who teaches at the same high school attended by his only daughter, Giovanna. A shy and sensitive girl, her insecurities are only magnified by Michele's overprotectiveness—reaching a point of no return.

When his destituite widowed sister-in-law—whom he had never stopped harbouring feelings for—and her ne'er-do-well son come to live with him after World War II, a mentally-ill farmer who spends all his time destroying unexploded ordnance scattered across the countryside finds a new purpose in his lonely life.