Nicoletta is a young rebel, cherished by his forgiving father, until an old relative joins the family after the wedding of her sister, and insists that the impetuous girl is sent to college. Nicoletta becomes a true tornado for educators trying in vain to bring her under control.

Renzo and Lucia's love story is jeopardized by Don Rodrigo, a wicked nobleman, who is interested in Lucia. When she refuses his attentions he has her kidnapped and brought to a convent whose prioress is a nun as wicked as he is. The two youths will have to go through a lot of misfortunes before being reunited and being able to marry.