Hard Rock Nightmare

After a flashback involving a child driving a stake into the heart of the evil werewolf grandfather, we see the Bad Boys, a decidedly not-great rock band who are fed up with being hassled by the cops for playing in their garage. They take off to singer Charlie's cabin. Charlie keeps having nightmares along the way, and the band and their girlfriends are finally settled in the cabin to rehearse. They then start to draw the attention of a werewolf hanging around the area.