In late 19th-century Turin, the young Lidia Poët, fights against everything and everyone to get what is rightfully hers: to be enrolled in the official register of lawyers. A profession, at the time, reserved exclusively for men. Nevertheless, nothing could stop her dream of becoming the first female lawyer in Italy.

Born on the 1st of January 1900 in a poor family in rural Sicily, Modesta pursues happiness since her childhood without falling victim to the constraints of society. After a tragic event that takes her away from her family, Modesta is welcomed into a monastery, where she becomes the Mother Superior’s protégé thanks to her intelligence and stubbornness. Later, she arrives at the villa belonging to the Princess of Brandiforti, where she makes herself indispensable. This relentless process of emancipation goes along with a journey of personal growth and sexual awakening, which lead her to discover and claim the right to pleasure and happiness.

April 1887. Between Rome and Turin. Enrico is in Parliament. Lidia's law reaches the committee. But an explosive case shocks public opinion. Grazia Fontana, Lidia's best friend, is accused of killing her husband. In the Assize Court, prosecuting the case is Fourneau. Before him, Lidia. Is it murder... or self-defense? It's the trial of the century, and Lidia will once again have to choose: protect her heart or rewrite the law?