An struggling Italian of American nationality decides to go back to US. His girlfriend, who was ready to ditch him for wealthier people, marries him to get to USA. There, she flirts and then becomes lover of a rich night-club owner., whom the husband beats up when he catches them red-handed and unwilling to disgrace his wife, he goes to jail. The wife carries on with her lover, and when he ditches her for another, she commits suicide. The husband, on parole, kills the lover and is sentenced for life, but the shock makes him to go in a shell.