With no success in the music industry and facing middle age, Philadelphia rock n' roll drummer Johnny Covini ends up in rehab after he is arrested while buying cocaine from the neighborhood drug dealer. While in rehab, he finds a power far beyond that of any rehab program, he falls in love with Rosanna Angellini - a girl from the neighborhood who visits him frequently. In the midst of it all, Johnny begins rehearsals with a group of old musician buddies, laying the foundation for one of the best rock bands of their time.