While chaos rules over Rome, established alliances are at risk as tensions rise with emerging criminal clans. The world of "Suburra" takes a new turn.

Bianca is 23 years old, and it already feels like too much. She has left her parents' home and is supposed to attend university, but she never goes. She has a few specific obsessions: the passing of time, cocaine, and Angelica. Since they started living together, everything seems to move faster, spiraling downwards. Even their friendship stumbles into addiction and becomes confused with love. Bianca keeps a notebook, jotting down notes for her books. Still, she wishes she could write everything in it: that youth is painful and already slipping away, that friendship breaks your heart, and that we constantly lose everything — and yet, maybe, in the end — between the night streets of Rome, the boys of Naples, and the tree that stands silently, visible through the window — nothing will be truly lost.

In Rome, during a January weekend a sudden heatwave arrives. The sun is initially pleasant, but the heat quickly escalates to a frightening degree, resulting in people and animals losing self-control.