Ralph is a sexually frustrated vampire who suffers from a peculiar curse. He's condemned for eternity to watch his one true love, Mona, be murdered by a ham bone. Now it's 1990, and Ralph is determined to break the cycle of reincarnation and death. But, before he can think about saving Mona's life, his first order of business is winning her affections. He does that by starting Rockula -- a rock band that's sure to stake a claim on her heart.