Palermo, Sicily, 1984. Examining magistrate Giovanni Falcone allies with Tomasso Buscetta, a former mobster, to defeat the clan of Corleone, the ruthless Mafia faction that rules Cosa Nostra with an iron hand, cruelly eliminating all those who dare to oppose its immense power: other criminals, policemen, judges, even innocent civilians. One of them wants revenge, the other wants justice. But only one can survive such an unequal fight.

Costanza is drinking a beer in a Prague pub, a summer night in 1968, while a violinist enters and starts playing a "canone inverso" for her. It is not a case, that music and that violin have a story behind that could concern her. It is the love story between Jeno Varga and the music, between Jeno and Sophie.