A pair of teenage girls are headed to a rock concert for one's birthday. While trying to score marijuana in the city, the girls are kidnapped by a gang of psychotic convicts.Mari and Phyllis go to the "big city" to see their favorite band BloodLust. Along the way they meet up with newly escaped convict Krug and his gang.After kidnapping and butchering two teenagers, a gang of rapists and murderers unknowingly seeks refuge with the parents of one of the victims