Alex, a high-school boy fond of rock and punk music, falls in love with Adelaide, who shares his feelings but doesn't want to get too involved because she will soon leave for studying in America. Alex gets relief in music and his friend Martino who leads what looks to him as a more complete life.
Coliandro is an inspector serving at the Bologna police headquarters who constantly finds himself embroiled, against his will, in matters bigger than himself. But Coliandro never backs down, even though his carelessness and investigative incompetence inevitably land him in trouble.
