During the traditional carnival celebrations, the dead body of a young girl is found near the small town of Bellinzona, in Southern Switzerland. The officers engaged in the case find themselves investigating crimes rooted in a past full of shadows.
Joe, Carlo, Bobo and Giacomo have always been friends, each with their own life and problems, but united by an authentic bond and the passion that brought them together: music. The Boys, the band's name, had had lightning-fast success in the 1970s. In their routine - between love and personal affairs - a possibility bursts that takes them on a new journey: they will have to deal with the dreams and ambitions of the past and the world of today, but even more they will discover the meaning of their friendship. .