Bucket of Pus lead singer Zak is fed up of bass player Dominic's lack of ambition for their Death Metal band, while the whole band are jealous that Dominic is dating the very fit Bella. Zak plucks up courage to take the band in a new direction, but then one of them turns up dead and the whole lot are under suspicion. But, if there are no clues to pin it on the band, is it the dark forces of Death Metal wreaking revenge on the boys for turning their backs on the music? Detectives Pierson and Tanner are brought in to find the killer: will they get their act together and discover the truth before it's too late for those who are left?