Police officer Amadeus Warnebring (Bengt Nilsson) was born into a musical family with a long history of famous musicians and he hates music. Now, Warnebring is about to face the most difficult case of his career. A group of six eccentric dummers, led by revolutionary genius Sanna (Sanna Persson), has decided to launch a full-scale musical attack using the city as their instrument. Their musical terrorism leads to chaos & disorder. As Warnebring hunts for these serial musicians, he discovers the woman he is in love with is the leader of the group. Warnebring is left with no choice but to enter the world he has spent his entire life fleeing - the world of rhythm and music.
