Rome, 1984, Aria is nine-year-old girl. On the verge of divorce, Aria's infantile and selfish parents are too preoccupied with their careers and extra-marital affairs to properly tend to any of Aria's needs. While her two older sisters are pampered, Aria is treated with cold indifference. Yet she yearns to love and to be loved. At school, Aria excels academically but is considered a misfit by everyone. She is misunderstood. Aria finds comfort in her cat - Dac and in her best friend - Angelica. Thrown out of both parents' homes, abandoned by all, even her best friend, Aria finally reaches the limit of what she can bear. She makes an unexpected decision in her life.
It's 1943 and World War II is raging in Europe. In New York, Arturo and Flora the daughter of a restaurant owner are in love, but she is promised in marriage to the son of a Mafia boss. There is a way around this, but to be able to marry Flora, Arturo needs to get permission from her father, who lives in a village in Sicily. Arturo doesn't have any money, so the only way he can get to Sicily is to enlist in the U.S. Army, which is preparing for a landing on the island.
2015: Hell is in chaos. A host of new sinners arrive every day to crowd Minos' offices. But Hell is an old, antiquated structure: the new sinners, not finding a right place, are dispersed among the circles. Lucifer is received directly by God, who seeks a solution. The winning idea is a cataloging of the new sins on Earth. And who to entrust the task to if not Dante Alighieri, who already once, in his time, carried out this task with excellent results? Dante is thus catapulted into a large Italian city, and finally finds his guide, the one who will accompany him in search of the "new sins": Demetrio Virgilio, a precarious thirty-year-old who is preparing, like every morning, to face another "day of Hell".
