Romeo and Felice lead two rival bands who constantly make fun of each other. One day, Romeo meets and falls in love with Giulietta, without knowing that she is Felice's sister.
A mysterious killer eliminate the singers of a brand new music Festival in Naples. Some journalists will try to discover who is that murderer who seems to be obsessed by the song "Funiculi, Funicula".
At carnival, a girl disguised as a devil seduces the parish priest of a village. She becomes pregnant, but the priest can not support his intention to abort and drag her to court.
