And one morning from 1973 and in class 2a H enters Dina for the first time. She is twelve, wearing expensive clothes, she is blonde and overweight. She turns to her her new benchmother and tells her: "I'm fascist". The other of her answers her: "I am a communist". And a lightning shot. Among the two there is an overwhelming friendship, made of subterfugi, oaths, chatter, litigi, passionate reconciliation. Two different worlds, two families of opposite extraction, one of a worker matrix, the other, that of Dina, decidedly bourgeois, that the two girls mix and alternate in a bologna animated by the first student struggles. Thirty-seven years later, while you park the car, the protagonist of this story feels the song that you and Dina on the radio listened to the exhaustion on a turntable. And suddenly, lively, Dina is again there. Where did the rebel teenager always fight with a cold and seductive mother? What was the exact time when something has broken? And why that irrepressible temptation to walk with eyes closed on the edge of a precipice?