Dewey? Finn (Jack Black Jack? Blake is a rock musician. He is over thirty, but he is still fighting for his ideal. He disdains the fake music that is shoddy and full of flattery to business, and pursues pure rock music with all his heart. To this end, he parted ways with countless bands, so far his career has achieved nothing, and he is still facing the dilemma of being driven out by the landlord.