In the year 74 BC, Titus Lucretius Carus, a young man with bold ideas, tries to convince his friend Memio that moving to the city of Rome to study is a total waste of time. Years later, Lucretius returns from the capital. Trying to find a balance between his explanations of the natural world and his emotional experience of it, Lucretius lives a deep and troubled passion with his foreign wife Isa.
Greice, a Brazilian girl studying in Lisbon, gets involved with a mysterious guy and ends up getting accused of a strange incident that occurs at the students' welcoming party, which forces her to return to her hometown to renew her residence permit. Hidden in a hotel, while preventing her mother from discovering she’s back in the country and with the help of some friends, Greice tries to find a place of comfort in the world.
Alice decides to move to Berlin, and Ema, her roommate, organizes her a farewell dinner, “The Useless”.
