A tale of love, rivalry and passion set in the 50s, in the madcap world of motorcycle speed races, shot on the occasion of the main competitions of that time, such as Monza’s Moto GP and the last edition of the legendary Milano-Taranto race. With also very rare footage of the Moto Guzzi wind tunnel and factories. The film features, alongside popular actors Rik Battaglia and Sylva Koscina, many of the most important champions of those years: Geoffrey Duke, Libero Liberati, Bill Lomas, Enrico Lorenzetti, Reg Armstrong, Stanley Woods, Ken Cavanagh, Dickie Dale, Thomas Campbell, Pierre Monneret, Albino Milani, Walter Zeller, Bruno Francisci, all of them riding amazing Moto Guzzi, Gilera, Mondial and Norton bikes with the so charming and dangerous dustbin fairings that were going to be banned in 1958.

While celebrating his birthday, police inspector Basquier recalls two of his most celebrated cases. The first involves duplicitous moneylender Olga. The second concerns the brutal broad daylight murder of innocent young Yvonne.

Burgundy 1728. Old count Antoine d'Eon is overjoyed. His daughter-in-law has finally given birth to a boy and he will at long last be able to transmit his inheritance to his son Pascal. At least this is what he thinks, for Pascal has concealed from his father the fact that his son was ... a daughter, his eighth daughter! Well, enough is enough and Geneviève has no other choice but become a boy first, then a soldier and even the special envoy of Louis XV, King of France, to Catherine II, the Czarina of Russia.