The miniseries tells the eight double murders committed from 1968 to 1985, in the Florentine countryside, where young couples who were massacred appartavano in their cars looking for intimacy. It particularly emphasizes the personal battle of Renzo Rontini, father of Pia killed with her boyfriend Claudio Stefanacci in Vicchio, in Mugello (29 July 1984), in the search for the culprit of the death of his daughter.

A couple of bourgeois intellectuals, Carlo and Silvia, have been married for twenty years. While she lives in their flat in Rome, he spends most of his time in the country house where he writes his books, openly living with his younger lover, Lù. In return, Carlo has long accepted that her wife may have lovers, but her volatile relationship with a young neo-fascist suddenly rekindles his jealousy.