In the continuing saga of the Corleone crime family, a young Vito Corleone grows up in Sicily and in 1910s New York. In the 1950s, Michael Corleone attempts to expand the family business into Las Vegas, Hollywood and Cuba.

After dying in a car accident, wealthy shoe industrialist Carlo Bacchi finds himself in the afterlife, where he is condemned to hell for having committed evil while alive. Defending himself against the accusation in an impassioned plea, however, he succeeds in obtaining to return to earth for a few hours to make reparation for the evil he committed and, above all, for the bad deed that caused Amedeo Santini's suicide attempt. The affair will lead him to make a risky but happy choice.