Inspector Dodaro is dealing with the case of Karina, a 19-year-old worker dragged into a warping machine. Initially, it's suspected that the cause of her "accidental death" was a distraction from the girl, who was tired from dance practice, but Mimmo discovers a different truth.

Nino Pastrengo, owner of a carnival float company, is found dead in his hangar inside the Viareggio Carnival complex. Initially, it's thought to be an unfortunate accident, then a murder orchestrated by a rival company. But was that really the case?